Question

What is the maximum value of $\frac{1}{sec\theta }$?

Answer 1

Evaluating the expression:

$\Rightarrow \frac{1}{sec\theta }$

As, $\frac{1}{sec\theta }=\cos \theta$

and

$\mathrm{cos\theta }=1\mathrm{at}0°$

Therefore,

Maximum value of$\frac{1}{\mathrm{sec\theta }}=1$

Hence, maximum value of $\frac{1}{\mathrm{sec\theta }}=1$.