SOLUTION: What is the reference angle of cos 45

Algebra ->  Trigonometry-basics -> SOLUTION: What is the reference angle of cos 45      Log On


   

Question 974584: What is the reference angle of cos 45
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
You can find
Solved by pluggable solver: SOLVE a linear equation
Solve 2%2Ax%2B1=5. Move 1 to the right: 2%2Ax=5-1. Divide by 2: x=%285-1%29%2F2=4%2F2+=+2
your answer on the unit circle.