Question

Simplify tan^2theta - sec^2theta ?

Answer 1

`-1`

Explanation:

`tan^2theta - sec^2theta`

Applying the identity `1+tan^2theta= sec^2theta`:
`tan^2theta -(1+tan^2theta)=`
`tan^2theta -1-tan^2theta)=`
`cancel(tan^2theta) -1cancel(-tan^2theta)=`
`-1`