Derivative of sin(x) from First Principles

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I used the definition of derivative to show that d/dx (sin x) = cos x
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likhomava
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JoeTaxpayer
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georgebigouch
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dont stop learning those who stopped learning are the ones who stopped living- hit me you so much for this derivation sir

sairamk
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jethrobo
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rayraro
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Wow...you are one of the best teachers I have met online thank you for clarifying the last step

samwelkariuki
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Great_dreamer
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saniulazam
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shouldve came here before my a level maths edexcel exam

belalmenisy
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Thank you so much for explaining this really clearly and not rushing through any steps. This question came up in a practice paper I did, and I was really stuck, but this video has helped to clear that up. Thank you!

Tawny
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SilasKiprotich-dr
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EternalScienceAndTech
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NEUMATHEMATICSACADEMY
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you could use factor formula from sin (X+h)-sinx

esromaron
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Looks like you're using hyperbolic trig functions. Love refreshing my collage days 45 years ago. Your videos are great.

kerrynewman
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This question disturbed me a lot...thank you so much

tyrell
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VedanthRaj
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VishalThakur-iq
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7:51 give me the proof of the limit as h goes to 0 of (cos h - 1)/h

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