SOLUTION: Find the exact value of cos315 degrees
Algebra.Com
Question 149724: Find the exact value of cos315 degrees
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
315 degrees is 45 degrees away from 0 degrees.
Therefore sin(315)=cos(315).
You also know that for any angle, x,
In this case,
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