Question 10 Find the derivative of cos x from first principle.
Class XI - Limits and Derivatives Page 313
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Refer to the attachment.
___________________
formulas used
•cosA-cosB = -2sin(A+B)/2 sin (a-b)/2
•lim x→0 sinx/x= 1
______________
I hope this will help you .
ask me if you will face any problem.
___________________
formulas used
•cosA-cosB = -2sin(A+B)/2 sin (a-b)/2
•lim x→0 sinx/x= 1
______________
I hope this will help you .
ask me if you will face any problem.
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