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bridgetx516x

  • one year ago

I have a question asking what is equal to -sec^2x. I believe that the answer is -tan^2x-1. However, I am not completely positive

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  1. bridgetx516x
    • one year ago
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    I came to this conclusion by making 1+ tan^2 =sec^2 all negative to get -1 - tan^2x = -sec^2 which is also equal to -tan^2x -1 = -sec^2x. Is this correct or have i done something wrong? Please helpp

  2. amistre64
    • one year ago
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    its correct

  3. bridgetx516x
    • one year ago
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    okay thank you!

  4. amistre64
    • one year ago
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    \[sec^2=\frac1{cos^2}\] would also seem fine

  5. bridgetx516x
    • one year ago
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    well it was a multiple choice questions with the answers: a. tan^2 x -1 b. -tan^2 x +1 c. -cos^2 x d. -tan^2 x -1 e. none of the above I said that it was D. @amistre64

  6. amistre64
    • one year ago
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    D does fit best with the options given :)

  7. bridgetx516x
    • one year ago
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    ok thanks :)

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