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ERoseM

  • 3 years ago

Verify the identity: secx+tan(-x)sinx=cosx Please help

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  1. lgbasallote
    • 3 years ago
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    "verify" meaning prove?

  2. ERoseM
    • 3 years ago
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    Yes please.

  3. NotSObright
    • 3 years ago
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    tan(-x)=-tan x put

  4. ERoseM
    • 3 years ago
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    Okay, now how do I use that?

  5. lgbasallote
    • 3 years ago
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    remember that \[\sec x = \frac{1}{\cos x}\] and \[\tan x = \frac{\sin x}{\cos x}\]

  6. lgbasallote
    • 3 years ago
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    replace those in your equation

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