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8 December, 14:40

Find the exact value of the composition. arccos (cos pi/2)

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  1. 8 December, 14:45
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    arccos (cos pi/2) = ?

    cos pi/2=0, arccos (0) = ?, we know that cos pi/2=0, so cos^-1 (o) = Pi/2, but cos^-1 (o) = arccos (0), so arccos (cos pi/2) = Pi/2
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