Review question

# When does this trig function have its maximum value? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R8411

## Question

The greatest value which the function $f(x)=(3\sin^2(10x+11)-7)^2$ takes, as $x$ varies over all real values, equals

1. $-9$,
2. $16$,
3. $49$,
4. $100$.