SOLUTION: Use the half-angle identities to find the exact value of the trigonometric expression.
tan 22.5°
Algebra.Com
Question 930585: Use the half-angle identities to find the exact value of the trigonometric expression.
tan 22.5°
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
for -pi/2 < x < pi/2
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