2020 ONE(b)

Question

Find the gradient of the tangent to the curve

y = 3 sin 2 x + cos 2 x

at the point where

x = \frac{π}{4}

.

*You must use calculus and show any derivatives that you need to find when solving this
problem.*

Full Solution

Step 1

Step 2

Video Explanation

NCEA Level 3 Calculus Differentiation 2020 NZQA Exam - Worked Answers by infinityplusone(starts at 1:39)