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    Zayed35's Avatar
    Zayed35 Posts: 1, Reputation: 1
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    #1

    Feb 4, 2020, 11:39 AM
    Trigonmetric function
    How i can sove the problem given below:
    (Cosx-Cos2x)/1-cosx
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Feb 4, 2020, 09:10 PM
    What do you mean by “solve this?” Do you mean simplify?

    What you wrote is this:



    I wonder if what you actually meant is this:



    Please clarify.
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