Explore BrainMass

Explore BrainMass

    Trigonometric identities

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

    If you would please give me each step to solve these problems so I can get a better understanding how to solve these types of problems would be very helpful. Thanks.

    Graph each expression and use the graph to conjecture an identity. Then verify your conjecture algebraically.

    1. sec x - sin x tan x

    Verify that each equation is an identity.

    1. tan^2 x - sin^2 x = (tan x sin x)^2

    © BrainMass Inc. brainmass.com February 24, 2021, 2:33 pm ad1c9bdddf
    https://brainmass.com/math/trigonometry/trigonometric-identities-29087

    Solution Preview

    sec(x) - sin(x). tan(x)
    = 1/cos(x) - sin(x).sin(x)/cos(x)
    = {1 - sin^2(x)}/cos(x)
    = cos^2(x)/cos(x) = cos(x) ...

    Solution Summary

    This shows how to graph and verify trigonometric identities.

    $2.19

    ADVERTISEMENT