Question

Find the value of cos theta minus secant theta when it is given that cos theta is equal to 1 by 2

Answer 1

-3/2...................

Answer 2

Given :-

cos∅ = 1/2

To find :- cos∅ - sec∅

Since ,

Sec∅ = 1/cos∅

Cos∅ - Sec∅

$\frac{1}{2} - \frac{1 }{ \frac{1}{2} }$

$\frac{1}{2} - 2$

$\frac{1 - 4}{2}$

- 3 / 2