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DominiRican1013

  • one year ago

Which of the following are identities? A. sin6(x)=2sin3(X)cos3(x) B. (sin(x)+cos(x))^2=1+sin^2(x) C. sin3(x)-sin(x)/cos3(x)+cos(x)=tan(x) D. sin3(x)/sin(x)cos(x)=4cos(x)-sec(x)

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  1. LynFran
    • one year ago
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    A for sure is one of the options...let me check the rest...

  2. LynFran
    • one year ago
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    B false...

  3. anonymous
    • one year ago
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    I got C

  4. DominiRican1013
    • one year ago
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    So it would be A and C

  5. LynFran
    • one year ago
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    and D

  6. DominiRican1013
    • one year ago
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    I tried solving D on the website you o on and it said cannot solve :/

  7. DominiRican1013
    • one year ago
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    But okay A,C, and D

  8. DominiRican1013
    • one year ago
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    I typed it the same way you did :/ that's weird

  9. DominiRican1013
    • one year ago
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    All were correct....

  10. LynFran
    • one year ago
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    lol...ok im off to bed good night every one..except "B"

  11. DominiRican1013
    • one year ago
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    good night

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