Question

2 cos theta minus 1 is equals to zero find cos theta + sec theta

Answer 1

$\huge\green{Heya}$

Here theta = A

$\textbf{Given :-}$

2 cos A - 1 = 0

2 cos A = 1

cos A = 1/2

cos A = cos 60°

A = 60°

Now,

$\textbf{To find :-}$

Cos A + sec A

= Cos 60° + sec 60°

= 1/2 + 2

= 5/2

$\textbf{Hope this helps you}$

Answer 2

Hey !!


2 Cos ¢ -1 = 0


2 Cos ¢ = 1


Cos ¢ = 1/2



Therefore,


Sec ¢ = 2 .





Therefore,


Cos ¢ + Sec ¢ = 1/2 + 2 = 1 + 4/2 = 5/2