3sin13/12pi * cos 13/12pi

Question

3sin13/12pi * cos 13/12pi

Comments

pi это π ?

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lf

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да

Answer 1

3*sin(13/12 *π)*cos(13/12 *π) = 1.5 * sin(13π/6) = 1.5 * 0.5 = 0.75