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Catsarecool97

  • 2 years ago

Rewrite with only sinx and cosx. cos2x-sinx

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  1. shubhamsrg
    • 2 years ago
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    are you familiar with double angle formulae ?

  2. Catsarecool97
    • 2 years ago
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    yes. I know that cos2x would be cos^2x-sin^2x

  3. shubhamsrg
    • 2 years ago
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    I think thats what you have to substitute only.

  4. AravindG
    • 2 years ago
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    Just substitute and you are done :)

  5. Catsarecool97
    • 2 years ago
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    so would it be cos^2x-sin^2-sinx?

  6. AravindG
    • 2 years ago
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    yep

  7. shubhamsrg
    • 2 years ago
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    according to me yes infact there can be more than 1 answers to it

  8. Catsarecool97
    • 2 years ago
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    would it be possible for it to be cos^2x-sin^3x?

  9. AravindG
    • 2 years ago
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    nope?

  10. Catsarecool97
    • 2 years ago
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    ok. thanks!

  11. AravindG
    • 2 years ago
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    yw :)

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