Question

Find the general solution to the equation `sec2A=2`?

Answer 1

`A=npi+-pi/6`

Explanation:

As `sec2A=2` and we also have `sec(+-pi/3)=2`

`:.2A=+-pi/3`

and general solution is `2A=2npi+-pi/3`

or `A=npi+-pi/6`