Let . Answer the…

MATHEMATICS · Multi-part · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

Let

f(x)=\bigl(2x+5\bigr)\tan 3x

. Answer the following: (i) Find

f'(x)

. (ii) Evaluate

f'\bigl(\tfrac{\pi}{6}\bigr)

. (iii) Show that

f'(x+\pi)=f'(x)

for all real

x

. What does this tell you about the period of

f'(x)

?

Related theory

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