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Math Help - Trigs and logs

  1. #1
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    Trigs and logs

    I am doing so bad in math and have no idea wat to do someone please help
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  2. #2
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    Quote Originally Posted by Tarwamin View Post
    I am doing so bad in math and have no idea wat to do someone please help
    So, you need help with problem 6? what have you tried?
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  3. #3
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    I tried it wen it was secx but my teacher told me to do cscx so i dont noe how to do that
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  4. #4
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by Tarwamin View Post
    I tried it wen it was secx but my teacher told me to do cscx so i dont noe how to do that
    Start that one by working with the left hand side because it is more complicated.

    \sin{x}+\sin{x}\cot^2{x}=\csc{x}

    Factor out a sine

    \sin{x}(1+\cot^2{x})=\csc{x}

    But, we know that 1+\cot^2{x}=\csc^2{x}

    So, now we get

    \sin{x}\csc^2{x}=\csc{x}

    But, we also know that [tex]\frac{1}{\csc^2{x}}=frac{1}{\sin^2{x}}[/mATH]

    So, now we get

    \sin{x}\frac{1}{\sin^2{x}}=\csc{x}

    You should be able to take it from here.
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  5. #5
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    thank you so much!
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