Over all real numbers

A.) 1

B.) 3

C.) 2π/3

D.) 4

E.) 12

*x*, what is the maximum value of 4 sin 3*x*?A.) 1

B.) 3

C.) 2π/3

D.) 4

E.) 12

Sine never gets higher than one.

Therefore:

the maximum value of sin 3x would be 1

and

the maximum value of 4(sin 3x) would be 4(1) = 4

**D.) 4**

*© Algebra House*