Question

#1

Suppose g(a) = 7.6 cos(0.5a).

a. What is the argument of the cosine function? (Enter an expression.)

Answer 1

`0.5a`

Explanation:

We have been given a trigonometric function
`g(a)=7.6\text{ cos}(0.5a)`. We are asked to find the argument of the cosine function.

We know that a trigonometric equation is solved for an unknown angle and that unknown angle is known as the argument of the trigonometric function. For example:
`\text{cos}(\theta)=0`. In this equation
`\theta` is the argument of the equation.

Upon looking at our given function, we can see that
`0.5a` is the argument.