Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1. cos^3 x a. 3/4 cos x − 1/4 cos 3x − cos 2x b. 3/4 cos x − 1/4 cos 3x c. 3/4 cos x + 1/4 cos 3x + cos 2x d. 3/4 cos x + 1/4 cos 3x

the answer is 37

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.