Explore BrainMass

Explore BrainMass

    Deriving trigonometric identities.

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Use trigonometric identities to derive the following identities:
    a.) sin^2x+cos^2x=1
    b.) sin2x=2sinxcosx
    c.) cos2x=cos^2x-sin^2x
    d.) cos2x=2cos^2x-1
    e.) cos2x=1-2sin^2x

    © BrainMass Inc. brainmass.com March 4, 2021, 7:19 pm ad1c9bdddf

    Solution Summary

    Trigonometric identities are derived.