Explore BrainMass

Explore BrainMass

    Using 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!

    1. Use the fundamental identities to write the first expression in terms of the second:
    a) tan^2(t)*sec(t); cost(t)
    b) sec(t); sin(t) with t in quadrant 2

    Find the values of the remaining trigonometric functions at t from the given information:
    a) If sin(t) = -8/17 and the terminal point for t is in quadrant 4, find csc(t) + sec(t)
    b) If sec(t) = -5 and the terminal point for t is in quadrant 2, find sin^2(t) + cos^2(t)

    © BrainMass Inc. brainmass.com March 5, 2021, 12:23 am ad1c9bdddf

    Solution Preview

    Solution to first question:

    (a) (tan(t))^2*( sec(t)) = [(sec(t))^2 - 1]*(sec(t)) = (sec(t))^3 - sec(t) = 1/(cos(t))^3 - 1/cos(t)

    (b) since t is in quadrant 2, sect = ...

    Solution Summary

    The expert examines trigonometric identifies to examines fundamental expressions.