Asked by Abbey

1) Use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle.

67 degrees 30'

Answers

Answered by drwls
Use the half angle formulas at
http://www.sosmath.com/trig/douangl/douangl.html

The sine of the full angle (135 deg) is 1/sqrt2 and the cosing is -1/sqrt2
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