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anonymous

  • 5 years ago

the function H(x)=sin x cos x/2tan^2x i even. true or false?

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  1. amistre64
    • 5 years ago
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    i even? I assume that means "is even"

  2. amistre64
    • 5 years ago
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    even means reflects about the y axis right?

  3. amistre64
    • 5 years ago
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    if f(-x) = f(x) it is an even function x^2 = (-x)^2

  4. amistre64
    • 5 years ago
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    cos is an even function and sin is an odd function in general....just recapping my memory here :)

  5. anonymous
    • 5 years ago
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    yep, that be always true

  6. amistre64
    • 5 years ago
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    sin(x) cos(x) -sin(x) cos(x) ---------- = ----------- ???? 2tan^2(-x) -2tan^2(x)

  7. amistre64
    • 5 years ago
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    i think I messed up that tan^2(x) part lol hold on

  8. amistre64
    • 5 years ago
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    2tan(x)tan(x) = 2-tan(x)-tan(x) = 2tan^2(x) its (+) on the bottom and (-) up top; it aint even then

  9. anonymous
    • 5 years ago
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    "All Students Take Calc" All positive in 1st quad Sine positive in 2nd quad Tangent positive in 3rd quad Cosine positive in 4th quad

  10. anonymous
    • 5 years ago
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    yeah, it's not even it comes out neg

  11. amistre64
    • 5 years ago
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    well of course tan is odd....it looks like x^3 lol right?

  12. anonymous
    • 5 years ago
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    lool so taaan

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