If cosθ = x, then = ± √1+x/2.
A. sin θ/2
B. cos2θ
C. sin2θ
D. cos θ/2...
![Mathematics](/tpl/images/cats/mat.png)
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
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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