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anonymous

  • one year ago

Simplify the expression: cot x sin x - sin quantity pi divided by two minus x. + cos x

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  1. ali2x2
    • one year ago
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    why dont you use wolfram or tiger-algebra

  2. ali2x2
    • one year ago
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    so easy too :P im not telling you you have to just a choice of action

  3. anonymous
    • one year ago
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    I could, but this helps teach me more.

  4. anonymous
    • one year ago
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    really need the equation tool for this almost impossible to read in english

  5. anonymous
    • one year ago
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    cot(x)sin(x)−sin((π2)−x)+cos(x)

  6. ali2x2
    • one year ago
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    ok

  7. ali2x2
    • one year ago
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    amazing how a mod agreed with me :3

  8. ParthKohli
    • one year ago
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    cot eks sin eks equals cos eks divided by sin eks times sin eks equals cos eks sin quantity pi divided by two minus eks equals cos eks so the expression boils down to cos eks minus cos eks plus cos eks

  9. anonymous
    • one year ago
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    Oh, and the answer choices are: cos(x) sin(x) 2sin(x) 2cos(x)

  10. ali2x2
    • one year ago
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    sin(x) + 2 cos(x)

  11. anonymous
    • one year ago
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    Yeah, @ParthKohli I got that part, but I can't figure out how to get one of the answer choices from it.

  12. anonymous
    • one year ago
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    Or at all, really....

  13. anonymous
    • one year ago
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    @ali2x2 That's not one of the possible answers.

  14. anonymous
    • one year ago
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    first off \[\sin(\frac{\pi}{2}-x)=\cos(x)\]

  15. ali2x2
    • one year ago
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    sorry that i couldnt help mabey @satellite73 will have better luck, MUCH BETTER LUCK

  16. ali2x2
    • one year ago
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    maybe

  17. anonymous
    • one year ago
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    @satellite73 That's an identity?

  18. anonymous
    • one year ago
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    @satellite73 ?

  19. anonymous
    • one year ago
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    Oh, whoops, @ParthKohli you solved it but it was confusing to look at, the final answer is cos(x).

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