Question

How do you simplify the expression `-(sin^2x+cos^2x)`?

Answer 1

-1 is the answer to the given expression.

Explanation:

We know,

`color(red)(sin^2x+cos^2x=1)`

`color(red)(-(sin^2x+cos^2x=-(1)))`

From the expression we also see
`sin^2x=1-cos^2x`