Question

if sec theta=1÷root 3 then cos theta=​

Answer 1

$sec \: \theta = \frac{1}{ \sqrt{3} }$

$\because \: cos \: \theta = \frac{1}{sec \: \theta}$

$cos \: \theta = \frac{1}{ \frac{1}{ \sqrt{3} } } \\ \\ cos \: \theta = \sqrt{3}$