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Thread: Need help with trig question

  1. #1
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    Need help with trig question

    Show that the following relationships are satisfied by the given values:
    sin2(theta) = 2sin(theta)cos(theta), when theta = 150 degrees

    I'm just not sure how to answer this type of question.
    Thanks

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    Administrator Trebla's Avatar
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    Re: Need help with trig question

    Substitute the angle on the LHS to find what the value is.

    Next, substitute the angle on the RHS to find what the value is.

    Acknowledge/check that they are indeed equal.

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