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

Expert Answers
hkj1385 eNotes educator| Certified Educator

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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