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    Half-Angle Identities

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    10). Use the half-angle identities to evaluate tan(67.5) exactly.

    A). 1 +
    B). 1 -
    C). -1 +
    D). -1 -

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    © BrainMass Inc. brainmass.com October 9, 2019, 8:37 pm ad1c9bdddf
    https://brainmass.com/math/geometry-and-topology/half-angle-identities-156815

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    Solution Summary

    Half angle identities are investigated.

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