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felicia888

  • 3 years ago

Prove equation is an identity: csc(x)-sin(x)/csc(x) = cos^2(x)

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  1. felicia888
    • 3 years ago
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    Should I substitute 1/sin(x) for csc? I'm not sure on how to simplify that and get 1-sin^2(x) so it equals cos^2(x)

  2. natasha.aries
    • 3 years ago
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    yes you should

  3. felicia888
    • 3 years ago
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    \[\frac{ 1 }{ \sin (x) } - \sin (x)\div \frac{ 1 }{ \sin(x) } = \frac{1-\sin ^{2} }{ \sin (x)} \]

  4. natasha.aries
    • 3 years ago
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    Hold on.

  5. felicia888
    • 3 years ago
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    How do you get rid of the other sin(x)?

  6. natasha.aries
    • 3 years ago
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  7. natasha.aries
    • 3 years ago
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    Do you understand?

  8. felicia888
    • 3 years ago
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    Yes, thank you

  9. natasha.aries
    • 3 years ago
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    you're welcome! :) can you try looking at my ?

  10. felicia888
    • 3 years ago
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    yep

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