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    Trigonometric Formula Square Root

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    Using the exact value cos(pi/4) = 1/square root of 2 and a trigonometric formula, show that

    sin (pi/8) = (square root of (2 - Square root of 2)/2.

    Using exact value cos(pi/6) = (square root of 3)/2 and a double angle formula to obtain an expression for the exact value of sin(pi/12)

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    https://brainmass.com/math/trigonometry/trigonometric-formula-square-root-25192

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    Using the exact value cos(pi/4) = 1/square root of 2 and a trigonometric formula, ...

    Solution Summary

    The expert examines trigonometric formula square roots. The exact value of a trigonometric function is given.

    $2.19

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