`y = -csc(x) - sin(x)` Find the derivative of the trigonometric function.

Textbook Question

Chapter 2, 2.3 - Problem 49 - Calculus of a Single Variable (10th Edition, Ron Larson).
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hkj1385 | (Level 1) Assistant Educator

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Note:- 1) If y = sinx ; then dy/dx = cosx

2) If y = cosecx ; then dy/dx = -cosecx*cotx

Now, 

`y = -cosec(x) - sin(x)`

`dy/dx = y' = cosec(x)*cot(x)-cos(x)`

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