When comparing functions, explain how to find the maximum value for each function and determine which function has the largest maximum y-value.

the maximum value of any sine and cosine is 1

therefore coefficient of each function determine which one has largest maximum value

2(cosx) has maximum value for x=0 or 2pi and it is 2

3 sin ( x+ pi)  has maximum value for x= 3pi / 2 or - pi/2

the function has a value ( 0,2)

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: