Given the point Q(-7, 24) and its associated standard angle ?, find the value of...

Question

Given the point Q(-7, 24) and its associated standard angle θ, find the value of cosθ. Leave your answer in exact form.

Answer 1

Hi Michael,

 

Recall from the unit circle that the cos of an angle is the y value of the point on the circle and the sin is the x value of that point on the circle.

 

So given the point Q(-7,24), cos θ = -7