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anonymous

  • 4 years ago

help with my calculus hw

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  1. anonymous
    • 4 years ago
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    Sure.

  2. nenadmatematika
    • 4 years ago
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    post

  3. anonymous
    • 4 years ago
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    \[\int\limits_{?}^{?}(\sin ^{2}x -\cos ^{2}x)/(sinx)\]

  4. anonymous
    • 4 years ago
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    u=sin(x)? Rewrite cos2(x) as 1-sin2(x) The "2" is a power, btw.

  5. anonymous
    • 4 years ago
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    Yes, Stenly knows what he's saying.

  6. anonymous
    • 4 years ago
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    i think a work out would be more helpful because im not understanding what you are saying

  7. nenadmatematika
    • 4 years ago
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    Stenly wtf? :D

  8. anonymous
    • 4 years ago
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    @stenly i was calculus was that easy, lol

  9. anonymous
    • 4 years ago
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    Actually, ignore me. Take the 1/sin(x) and turn it into csc(x). Expand it out.

  10. anonymous
    • 4 years ago
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    Integrate by terms then.

  11. anonymous
    • 4 years ago
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    i am still confused

  12. anonymous
    • 4 years ago
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    what do you mean by expand it out

  13. anonymous
    • 4 years ago
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    Alright, so csc(x)(sin2(x)-cos2(x)). Can we agree with that? (The 2 is a power.) This is the same as csc(x)sin2x-csc(x)(cos2(x)), which is the same as sinx-cotxcosx.

  14. anonymous
    • 4 years ago
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    Hmm, I don't know why cotxcosx can be rewritten as cscx-sinx... Wait...

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spraguer (Moderator)
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