Sir me ek hi baat janta hu na koi apse best hai na koi tha or na koi bhi hoga agar mujhe example Dena ho na sir ki world m sbse best toh Aditya sir or koi dusra ho hi nhi skta because Aditya sir padhate h sbke jaisa baato ka batangar nhi krte or direct exam m dekhne ko milta h question Aditya sir ka
The sum of first 2n terms of 2,5,8,... is =2n2[2(2)+(2n−1)(3)] =n(6n+1) The sum of n terms of 57,59,61,... is =n2[2(57)+(n−1)(2)] =n(56+n) Given that n(6n+1)=n(56+n) Whuch means 6n+1=56+n 5n=55 n=11
Question number 27 me Positive integer ki baat hui hai to 3 ko kaise likh sakte hai jabki 0 positive integer me count nhi hote... To frst term 3 nhi likh sakte.. Ans 13 hoga. series 10 se strt kro.
Sir aapka pdhana bhut bhut hi axhhe se smjh aata h pr sir plz class notes bhi provide kra dijiye time km h itna ni krparhi or aapke notes ni milrhe khi bhi
@@letslearnmathsin4074 for 2n terms, last term (l) = a+(2n-1)d = 2+(2n-1)×3 = (6n-1) For n terms, last term (l) = a+(n-1)d = 57+(n-1)×2 = (2n+55) now the sum is equal so, 2n/2 [ a+l ] = n/2 [ a+l ] => 2n/2 [ 2+6n-1] = n/2 [ 57+2n+55 ] Therefore, n = 11 (ans) Do the calculation.
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Sir me ek hi baat janta hu na koi apse best hai na koi tha or na koi bhi hoga agar mujhe example Dena ho na sir ki world m sbse best toh Aditya sir or koi dusra ho hi nhi skta because Aditya sir padhate h sbke jaisa baato ka batangar nhi krte or direct exam m dekhne ko milta h question Aditya sir ka
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Q.30- 11😊
The sum of first 2n terms of 2,5,8,... is
=2n2[2(2)+(2n−1)(3)]
=n(6n+1)
The sum of n terms of 57,59,61,... is
=n2[2(57)+(n−1)(2)]
=n(56+n)
Given that n(6n+1)=n(56+n)
Whuch means
6n+1=56+n
5n=55
n=11
Kon kon 4.30 baje vala class dekh kar aaye h
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Question number 27 me Positive integer ki baat hui hai to 3 ko kaise likh sakte hai jabki 0 positive integer me count nhi hote... To frst term 3 nhi likh sakte..
Ans 13 hoga. series 10 se strt kro.
Question 25 ka answer -d(86350)
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25 d 86350 ans ❤❤
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Last question Ans--=8
Option D
Q.30 -(C)11
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D,
86350 ans
Q. 25:- (d) 86350
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25 ans. D isme digital sum dhaddle se lga 😊
Question 30 ka answer 11
Question no. Right answer is 86350
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86350,Q-30=11 ans 🙏🙏
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C. 11
30) 11 ans
Yes sir
Q 25 ans 86350 d
25(d)
25) 86350
30) 11
Thank you Guruji ❤
Kaise kiya 30 ka plz explain
@@letslearnmathsin4074 for 2n terms,
last term (l) = a+(2n-1)d = 2+(2n-1)×3 = (6n-1)
For n terms,
last term (l) = a+(n-1)d = 57+(n-1)×2 = (2n+55)
now the sum is equal so,
2n/2 [ a+l ] = n/2 [ a+l ]
=> 2n/2 [ 2+6n-1] = n/2 [ 57+2n+55 ]
Therefore, n = 11 (ans)
Do the calculation.
25-d
30-c
Q. No. 25 ka answer 86350 hoga
HW: Q 25: 83650
Q 30: 11
25 __86350😊
ESME PHLE 2ND PAD NIKAL KR DIRECT L =a ➕ (n-1)d (Antim pad ) NIKAL LIYE HAI FIR FORMULA PR RAKH KE Sn=n/2(a ➕ l)
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H.W : 1) 86350
2)11
25. - 86350
30. - 11
25-d answer
D for devsena is compolsary
Q.25. 86350
Q.25=86350
Q.29=11
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86350 hoga ans
Ans of last question is 11
25= d option is correct
Ans 86350
Hum
I am class 10 🔟 all solv
30-c, ans-11
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H.W=Q.25=86350🎉
28:12
86350❤❤❤❤
25= d
30 n 11
25 ka d right hai sir
D
25 d
Sir g 25 q -d 86350 is the answer
24:50
I am in class 10
n=11
D ans h
1127
Q25. D.86350
Q30. C. 11
Ques 25 ka ddd 86350
Answer hai sir
30 ka c
hai
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11
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25- 86350
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86350
25 86350
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