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Lauren01

  • one year ago

prove -tan^2(x)+sec^2(x)=1

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  1. rishabh.mission
    • one year ago
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    firstly express the Right hand side term

  2. rishabh.mission
    • one year ago
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    write sec as 1/cos and tan as sin/cos

  3. rishabh.mission
    • one year ago
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    then u'll get 1/(cos(x)) ^2 - (sin(x))/(cos(x)) ^2 = 1

  4. Lauren01
    • one year ago
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    solved it. trick question sorry. Pythagorean identity 1+tan^2x=sec^2x

  5. rishabh.mission
    • one year ago
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    simplify the left hand term

  6. Lauren01
    • one year ago
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    already did the answer. its the same thing.

  7. rishabh.mission
    • one year ago
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    ok but i was solving in different term ...

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