Question

How do you simplify `1 – sec² t`?

Answer 1

Simplify (1 - sec^2 t)

Ans: `-tan^2 t`

Explanation:

`(1 - sec^2 t) = (1 - 1/(cos^2 t)) = (cos^2 t - 1)/cos^2 t =`
`= - (sin^2 t)/(cos ^2 t) = -tan^2 t`