Asked by Anonymous
Solve for theta: cos2theta=1/2
Answers
Answered by
Damon
cos^2 T = 1/2
cos T = 1/sqrt 2 or -1/sqrt 2
= pi/4 or -pi /4 or 3 pi/4 or 5 pi/4 etc
cos T = 1/sqrt 2 or -1/sqrt 2
= pi/4 or -pi /4 or 3 pi/4 or 5 pi/4 etc
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