For , calculate…

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

For f(x)=cos⁡(3x−π4)f(x)=\cos\bigl(3x-\tfrac{\pi}{4}\bigr), calculate f′(π/4)f'(\pi/4). (a) 33 (b) −3-3 (c) 00 (d) −1-1

Related theory

Browse the problem library