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Schleman

  • 2 years ago

1/sec^2x = ?

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  1. anteater
    • 2 years ago
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    sec x = 1/cos x, and 1/sec^2 x = (1/sec x)(1/sec x) = ?

  2. anteater
    • 2 years ago
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    Sorry, I left something out. :) sec x = 1/cosx , so 1/sec x = 1/(1/cos x) = cos x

  3. anteater
    • 2 years ago
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    And so 1/sec^2 x = ?

  4. anteater
    • 2 years ago
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    cos^2 x ;)

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