Question

find the maximum value of 1/sec theta ,0 lessthan or equal to theta less than or equal to 90 degree​

Answer 1

$refer \: the \: attchment$

Answer 2

The min. value of sec q will return max. value for 1/secθ.

But the min. value of sec q is sec 0° = 1.

Hence, the max. value of 1/sec0° =1/1=1.