if you missed a letter not by accident, then you just said you don't know hindi well. its "your language", if you don't know english well. and if you don't know language please learn the culture first and the approriate phrases for situatuons otherwise it becomes awkward.
Very nicely done. I'd also run this through as d/dx cos x = d/dx sin (½π - x) = cos (½π - x) * d/dx (½π - x) = - cos (½π - x) = - sin x to give a really clear illustration of where the negative sign comes from on (only) the co-trig functions.
h comes from the definition of the derivative and sin x is from the angle sum formula for cosine. That was something you learned in trigonometry or precalculus.
Thanks sir i a from India i was literally facing a lot of problems i derivatives but now i guess its interesting to learn tq sooo much one more question sir , where are you from?
Best tutor! dealing effectively with our stress! difficult stuff but easily explained. Enthusiasm on point! your smile makes me feel at easy; having all the confidence that iam truly learning something.
It seems that all of the trig function derivations use trig identities to get the limit function in a form that could be evaluated as h approaches 0. I've been taught that Trig Identities are also proven using Euler's Identity (e.g., e^ix = sinx + icosx) which is proven using Taylor series, which is derived from using derivatives of polynomials. Calculus is still at the root!
Those who stop learning stop living.
and vice versa😃
I am from Morocco, and although I do not know your language well, you are very good at explaining, good luck, teacher 💗😊
I am Indian, i don't know our language well but you explained well than our lecture thank you so much
if you missed a letter not by accident, then you just said you don't know hindi well. its "your language", if you don't know english well. and if you don't know language please learn the culture first and the approriate phrases for situatuons otherwise it becomes awkward.
Just loved your handwriting and the way you you teach is peculiar🤩 Thank You For the video🌸
Thank you for the positive feedback. I’m glad the video was helpful.
my question solved, thanks sir, god bless u.......
Thank you for the passionate teaching, it's really amazing and helpful. Beautiful handwriting.
Iam very happy sir because after these many days I got the best teacher....
I have finished my class assignment with understanding. Thanks teacher.
Extremely helpful! Thank you so much!!!
loved ur teaching style sir!!was extremely helpful...once again thank you sir
Greatest math video I have ever watched, thank you so much
Great video!
Thanks Andrew. Hope you are rocking it over there!
Thank you! I hope that you are doing good as well!
Very nicely done.
I'd also run this through as
d/dx cos x = d/dx sin (½π - x) = cos (½π - x) * d/dx (½π - x) = - cos (½π - x) = - sin x
to give a really clear illustration of where the negative sign comes from on (only) the co-trig functions.
You are my best tutor,I enjoy listening to your lessons.
Thank you! 😃
Thanks man you are now my maths tutor, I will be watching your video to learn ahead
Happy to help
Excellently explained, 👍👍 keep it up sir.
I learnt a whole lot😊
Easy to understand😎
it is easy and simple to comprehend
من مصر جدا استفد من فيديوهاتك
So many doubts cleared from your video 😢❤❤
Very nicely explained
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You just saved my life.God bless
Nicely explained. But this your handwriting, I want to learn it
😊 Thanks
Very clear
Please can you explain how sin0 divide by zero is 1 your were wrong
Do you know in the books they have just did something that can't be understood human human interactions are always the best thank you so much sir
Where did you get the sin x and h
h comes from the definition of the derivative and sin x is from the angle sum formula for cosine. That was something you learned in trigonometry or precalculus.
Nicely done!
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You are a life saver!!!
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totally different teaching style from nepal
I learned something new
Helloooooo, friend from afar. Thank you for the feedback.
@@PrimeNewtons 😊
wow love this.
ALL I CAN SAY YOU KNOW YOUR STORY SIR.
Perfect video. Thanks a lot :)
Thank you sir for your help I am glad tha i have such good teacher thank you sir
nice video sir but can you solve it by putting the limit as delta x instead of h
Yes. Just replace h with delta x.
@@PrimeNewtons thankyou sir i got it
Thanks. Very helpful
Thnx sir that helped a lot
Nice explanation ;)
Nice video Profesa
You are the best
Thanks
Is it just me or you’re just flirty as a teacher😂🤭 and your voice is nice too😌 Really great explanation btw❤️
well explained
amazing video thanks
this video made me subscribe
wow i like the videos
Very helpful... Thank you
Great explanation!!
awesome
Thankyou sir
Sir I try to solve one more question using your method that is cos²x and get sin2x but the answer is -sin2x so please can you help me🙏
I don't understand your comment. What is the question again?
Missed the proof of the identity to make the vid complete
Thanks you❤
❤️
Lucid!
😍😍
i love you
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Uuuf why em i blushing
12 mia 1 ngaku lu yg nonton
This is not a derivation from first principles. You only know the sinx/x limit from l'Hopital's Rule. Lame
😊 🫂 thanks
RESPECT FROM INDIA✨🤌
Great video !
Thankyou sir 😌 🇮🇳❤️🇳🇬
Thanks sir i a from India i was literally facing a lot of problems i derivatives but now i guess its interesting to learn tq sooo much one more question sir , where are you from?
I'm glad it helped. I'm from Nigeria.
Thanks for this homie
Thank you
Well in the first step,he forgot to substitute cos x for f(x).
Best tutor! dealing effectively with our stress! difficult stuff but easily explained. Enthusiasm on point! your smile makes me feel at easy; having all the confidence that iam truly learning something.
I'm from Bangladesh. I easily understand the math after watching your lesson.God bless you teacher😊
Glad to hear that
It seems that all of the trig function derivations use trig identities to get the limit function in a form that could be evaluated as h approaches 0. I've been taught that Trig Identities are also proven using Euler's Identity (e.g., e^ix = sinx + icosx) which is proven using Taylor series, which is derived from using derivatives of polynomials. Calculus is still at the root!
great video, just have a question, why is sinH/H when h-->0 =1? wouldn't it just be 0?
Wow you are a magician thank you so much
Very useful, thank you
Thanks for the video ❤
Wow! This tutor na boss. You look Nigerian tho. I loved your teaching. Imma go check the others. You handwriting and smile is just ✨✨✨✨✨
Thanks. I am Nigerian
I love you man
Good job.
Thank you❣
Classic ❤
I didn't get
Nice sir
GREAT 👌
👍
love everything about you, your style, teaching....🤩
Thank you
Hi sir , explain tan x also
As soon as I find time , I will do a video.
You have a gift for explaining things in a way that's easy to understand, and I'm so grateful for that. Thank you for your help 🙏🙏
Hey sir im from India🇮🇳 and i loved ur handwriting a lot!
Thank you for this video sir😊
This is great.. have been helped here 🙏🙏🙏. Thank you alot
Im from Sri Lanka , nice explanation
really great sir
sir will you please do the derivative of cos^-1 x by 1st principle
Do you mean 1/cos(x) or arccos(x)?
@@PrimeNewtons yes sir but sir i need immeditaly
They are not the same. Tell me which one
arccos(x)
I dont know arccos(x). Only 1/cos(x) I know. I'll do a video later tomorrow.