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Mathematics, 04.11.2020 22:00 liz3022

If cosθ = x, then = ± √1+x/2.

A. sin θ/2
B. cos2θ
C. sin2θ
D. cos θ/2

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If cosθ = x, then = ± √1+x/2.

A. sin θ/2
B. cos2θ
C. sin2θ
D. cos θ/2...

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