Limits and Continuity Best Shortcuts for Class 12 NCERT CBSE Solutions
Вставка
- Опубліковано 17 жов 2024
- Online Course to Crack Exam with 100% Guarantee
► IIT JEE - Mains Online Classes : bit.ly/CrackJEE...
► MHT CET Oniline Lectures: bit.ly/2Gk9hiQ
► WBJEE Online Classes : bit.ly/CrackWBJEE
►►in 2019 : Many Ques. in Maths For CET and JEE were directly asked from Our Course Material
Course Contain :
★ Complete Maths Video Lectures
★ PCM - Most expected papers
★ Most IMP MCQ Ques. for Maths
★ High Quality Maths Formulas sheet
►►For any query call or sms @ CALL: 91-9818434684
► Whatsapp Mandhan Sir at 91- 9579750256
#BEAT_THE_COMPETITION by JOINING Online Classes
#CALL_919818434684
#ONLINE_CLASSES_JEE_2020
There are various formulas of Limits and continuity but this is shortcuts for solution of limits and continuity.
This is extermely useful for Class 11 and12 NCERT CBSE Syllabous.
This is applicable to NDA exam 2017 2018
IIT JEE Mains and advance 2017 2018
and various competitive exams this shortcut formula is useful.
for limits and continuity class 12 there are various concepts and tricks for more updates subscribe to our channel .
1. Continuity and Differentiability
Continuity and differentiability, derivative of composite functions, chain rule, derivatives of inverse trigonometric functions, derivative of implicit functions. Concept of exponential and logarithmic functions.
Derivatives of logarithmic and exponential functions. Logarithmic differentiation, derivative of functions expressed in parametric forms. Second order derivatives. Rolle's and Lagrange's Mean Value Theorems (without proof) and their geometric interpretation.
2. Applications of Derivatives
Applications of derivatives: rate of change of bodies, increasing/decreasing functions, tangents and normals, use of derivatives in approximation, maxima and minima (first derivative test motivated geometrically and second derivative test given as a provable tool). Simple problems (that illustrate basic principles and understanding of the subject as well as real-life situations).
JEE 2019 के लिए बड़ी खुश खबर ( Big SURPRISE to CRACK EXAM )
🔥To Crack JEE Mains 2019 in 8 Days with Top 200 Que.
Click here to Buy :- goo.gl/ZkPrH6
🔥For any query call or sms @ #CALL_919818434684
🔥CrackJEE_Mains_2019
whatsapp Mandhan Sir at 91- 9579750256
🔥BEAT_THE_COMPETITION by JOINING #ONLINE_CLASSES_JEE_2019
for top_200_Most_expected_Concepts and Questions video solutions
Join Online Classes Call or SMS Us : # at 91-9818434684
#CrackJEEMains_2019 Solve top 200 Most expected Concepts and Questions
Join #OnlineClasses WhatsApp Us : @91- 95 79 750 256
Mandhan Academy
Please proof this example
Mandhan Academy pls proof this example
U can also derivate up and down,and then limit
Best Book to CRACK - IIT-JEE Maths.
Affiliate amzn.to/2pNh9Sv
Best Book to CRACK IIT-JEE 2018
Buy book from here(Amazon) :- goo.gl/Pgef0K
Sir as asked in solving problem in 30sec.
Trick :- b²-a²/2
a :- 14. b:-16
Hence:-
256-196/2
:. 56+ 4 /2
:. 30*
Dear Sir!
Thanks a lot for replying me!
I am glad to see channel and such wonderful content....Thanks a lot Sir!...for your precious work...I shared this video with my friends ....We all are proud of you!.
#CrackJEEMains_2019 Solve top 200 Most expected Concepts and Questions
Join #OnlineClasses WhatsApp Us : @91- 95 79 750 256
Pls make explanation in English
We can also use De- L Hospital's rule and solve the above question
This (b²-a²)/2 formula trick is actually derived from L'H rule
Are bhai jee me tuze kya method use kiya hai ye nhi puchne wale ans is most important 💯🤟
Answer is 30, sir this formula only applicable for x ^2? We can use the formula in cos (ax)+cos(bx)? Plz reply me...
sir ye trick sirf cosx ke liye hi h yaa sare trigonometry function ke liye .. plzz reply me .. I'm new student on ur channel plzz guide me !
+Royal Rajnish Singh, only cos - cos upon x Square
Mandhan Academy thanks for guiding sir 👍👍
Or sin or tan ke liye bhi esi trick sikhni ho to lohspital rule and taylor series ki help se aram ss nikal skte ho
A_N_U_J s it is called L hospital or lopital rule
30
We can also make addition of both a and b if a is great then -ve sign
Yaar cosC-cosD=-2sin(C+D/2)sin(C-D/2) u missed -ve sign wch would create a serious imbalance while ansering question
is this applicable only if the denominator is x to the power 2
Ans is 30
The denominator of cos3x-cos5x is x2 and it is 2x ok
If the denominator of cos3x-cos5 is x3 (x cube) what is x. Will it would be 3x?
Come on this is not a trick
It is L'hospital rule
yaa..but still we should encourage people na....
It's not L hospital rule l hospital rule is did by indermenant form
Sir is it only for cos or for all
Sir sin and tan ke case mai same formula use hoga kya
Samsung one5 nhi sin ke questions me denominator me odd power ka x aega ! And agr cubic aaye to x cube ki sari chijo ko 6 se devide krke likh dena
And tan ka case or alag hai uski series me send kr skta hu agr tumhe sahi me chahiye ho to
kya ap mjhy send kr skhte hein??
which publication is best for all solved previous gate questions ??
Last question ka answer= 30
sir ans is 30
Only in cos we can use it or in other case also
Only for cos
Sir answer is 30
Wow love u
sir answer is -30
+Karthik Nayak send me your preparing sheet
galat h
8 is ans
sir which book may i follow for my iit preparation...???
prove it sir
Sriram Jena well you will study maths at higher level you will find that every function can be written in a equation of x
And for more info text me in gmails
Nahi sahi hai prove karne ki baat hi nahi hai dekho dhyan se......
Sriram Jena so what
Square of 16 - square of 14 divided by 2 = 30
this trick is only for cosx or all the trignometry function
sir 9th class plz u can teach us about short tricks and tips
MANISHA MOTWANI
The formula of cos c - cos d is -2sin (c+d/2) sin (c-d/2)
mandhan sir can u prove that 0 =-1
Numberphile already proved that, go to their channel
I know it now
Multiplied zero both side
^ = power
we know that 1^0 =1
we know that 1^-1 =1/1=1
1^0=1^-1
when base are equal implies power are equal
therefore,
0= -1
thankyou leave a like
illuminated it's wrong. When we equate the powers, we have to take log on both sides. We get
log(1^0) = log(1^-1)
So,
0 x log(1)=(-1) x log(1)
You may think that log(1) can be cancelled on both side. But it is wrong as log(1) is equal to zero and we can never cancel zero.
nice sir but it s only for cos or others function ??
yipee I am the second to comment
Sir may we use L hospital rule .......yes or no
Ans is 30 sir,,but is this appropriate for this qstion ?
If there is something else instead of x square in denominator then ?? Reply please
+Suhail Saleem Suhail, this is standard format... It will not work if something else is there....
Actually this is common format for state level cet exams!!
Sir can we use this in ISC board examination?
30 and yeh trick sirf cos par hi lagegi kya???
Can we use shortcut method in board exam also?
no
-2sin c+d/2 sin c-d/2
sir, has it any limitation of this formula ?
Is it only. Applicable. For cos? Or more
+Vinay Mirani, yes only for this format
This format that means sin or tan too?
Vinay Mirani,.... Only cosx- cosy...... Sin - sin or tan - tan are not applicable
Mandhan Academy alright Thankyou! In returns I will share it to my friends :)
this trick will occur only COS or Any trigonometric ratio ?
Only cos
Can I use this in 12 th final exam
Sir ek question mera hai ki jab kisi bhi number ko divide karte hain to usse chhota number milta hai.
But negative number jaise...-76,-1,-8,,etc ko divide krte hain to usse bda number milta hia i.e, -38,-1/2,-4
sir can we write LIMIT (as x tends to 0) SIN(ax)/x = a?
Haan kya baat kya baat, ek kaam kar tu bhi ek channel khol de 😬
Yes
kya ye trick exam me use kar sakte hai
+HP SONG KING, sometimes.....
if we replace cos to sin now how to solve this type of question.???
it can be only used for cos or others
what are the condition of this trick
Sir what happen when Lim x_0 cos3x-sin5x/x2
Ans is 30...sir can u plz...give us some short tricks of set,relation and functions????
Sir par exam main short cut method chale ga Kya?????
Sometimes
Sir can we use this formula in state board exam
Sir ,is this trick only when limit x tends to 0
+ramanjan chityala, yes... Do like and share information with friends about channel Mandhan Academy
sir do u have a video for limits introduction.??
Sir can u prove it and also if we using this formula or trick in our examination then no cuts in marking
Lim x>infinity (x/1+x)whole power x . Solve it
Sir how we find limit if transidantal function are not given if only variables are given
Sir we can do a+b or not if b is greater and a+b and the sign of a if a is greater
Kya ye formula sirf cos ke lie hi hai kya
Yes
Do students get numbers by using this method?
50% for boards
Please learn about cos a - cos b
You used wrong formula
Is it applicable in boARD exams
no
how we know in that sum we use the C D or etc how we know sir
sir if we apply short cut method we would get full marks in that particular sum ?? in CBSE ..
+V D, 50%
sir jaisa ki aapne sabse phle wala trick bataya b square - a square wala kya hm vo trick exams me use kr sakte hai ( plzzz reply me sir)
Yes
sir ye ham government text book ke leye refers kar sakte hai plzz tell me ansr fast
Sir isaka prof kya hai
Sir agr question ma negative sign ho to uska liya kya karanga ya bhi batao
Sir can we do all questions where we have to apply limit by this shortcut formula and can we apply this formula in board.
sir kindly provide proof of theorem that you mentioned firstly of lecture....
+Muhammad Haroon, for which exam you are preparing..
Sir inderminant form hai DL hospital rule lga sakte hai ye sir 20 second me ho jayega
+VIBHAV PRAKASH, yes u are absolutely right
sir is this the trick only for cos ?? please sir ans fast if possible!!....
lalit patel mera same. Doubt h bhai
how to prove this formula
Sir agar lim tends to infinity hota he to kaise iska solution hoga pls sir
30
Yaar sir higher number keliye,a formula thoda miss hoga ex cos72x-cos147x/x^2 aap ka formula ka ans 8216.5 magar real ans -8216.5
Sir denaminater ma her aik qus k 7 2 aayaga??
Sir can u pl show how to drive this formula
Sir agr muje limit k kush quest ka solution chyeh ho to mein apko wo question kese send krn
Sir agar cos, ki jagah sin hoga to yeh formula alega
Nahi
Sir!!Can you tell me where I can get previous years question papers for MHT CET??
If we use this short-cut method in our boards(like CBSE) , is there any possibility in reduction of marks????
Yes
ans :30
Sir how can we proof?
Sir 2 kaha se aaya denominator me?
sir the answer is 30 reply me if iam right plzz sir
- ke jagay +=than??????
sir iska proof L'Hospital rule se hoga
smart! is this your own derivation or is it a known method?
+mathphschjhb, it is in books..... Any entrance exam book..... Not my creativity
Sir denominator 2 is constant for all sum or demoninater is difference between a and b????
Manisha Yadav, constant
Manisha Yadav, any a or b....
Thanks sir
Hello, can we get full marks with this shortcut method
Sir dssb tgt math ki prepration krwaoge kya
Which is best book to crack nda
Sir chemistry Ki video nhi h kya
Kya sabi limit vale question me ye tricks lag jaige
Only for this type
The problems can be solved by using L ' Hospital rule.
What is the proof for 1st question sir.
sir limit ka zero hona jaruri h kya please sir tell me
+Vijay Fartyal, yes....
No need proof .. because i have done it ... It is really outstanding formula
ANS is 30.give more and more challenges.
Sir 3sinx- sin3x/x3 iss type ki questions kaise solve krenge...plzz sirr iss type k kuch qustns k video dalea
Sir can u tell me for Navy SSR which is the best book for mathematics .......plase sir
sir in "INTEGRATION" you told shortcut and given some previous questions to solve.I WANT LIKE THAT IN "LIMITS" ALSO.you are telling shortcuts but not giving PREVIOUS QUESTIONS TO SOLVE IN LIMITS.