2021 THREE(a)

Question

Differentiate

y = \frac{cot x}{x ^{2} + 1}

.

You do not need to simplify your answer.

Full Solution

Step 1

Step 2

Video Explanation

NCEA Level 3 Calculus Differentiation 2021 NZQA Exam - Worked Answers by infinityplusone(starts at 56:14)