AM-2595

R-formula

A Math · Secondary 4 · Medium · R-formula

Given that

L = 9\sin\theta + 12\cos\theta

, express

L

in the form

R\sin(\theta + \alpha)

, where

R>0

and

0^\circ<\alpha<90^\circ

.

Hence, state the maximum value of

L

.

15
9
12
21

Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.

Loading problem…