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superraymond

  • one year ago

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  1. Hoa
    • one year ago
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    ok, tell me what is the formula to compute sin X

  2. Hoa
    • one year ago
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    sin X = opposite side / hypotenuse side. do you know which is which?

  3. Hoa
    • one year ago
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    |dw:1364252793504:dw|

  4. Hoa
    • one year ago
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    consider angle x, opposite side of x is AY

  5. Hoa
    • one year ago
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    hypotenuse is just one is XY

  6. Hoa
    • one year ago
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    so, sin X = opposite /hypotenuse . in your picture, you have values of them, just put them into the fraction, you have sin. cos = adjacent side /hypotenuse. do the same.

  7. Hoa
    • one year ago
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    study the formula is the key.

  8. Hoa
    • one year ago
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    you do, not me. I check only.

  9. Hoa
    • one year ago
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    yeap

  10. Hoa
    • one year ago
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    bingo. continue friend, you can do that, right?

  11. Hoa
    • one year ago
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    bingo!!!if the question ask you to find sin or cos of Y, do the same, at that moment, the adj of Y is what?

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