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a1men4ik
@a1men4ik
July 2022
0
33
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вычислите ctgx если sin
[tex] \frac{x}{2} [/tex]
- cos
[tex] \frac{x}{2} [/tex]
=
[tex] \sqrt{0.5} [/tex]
при
[tex] \frac{\pi}{2} < x < \pi[/tex]
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