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anonymous

  • one year ago

I need help asap on a trig question!!

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  1. chrisplusian
    • one year ago
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    ?

  2. Vocaloid
    • one year ago
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    post your question please

  3. anonymous
    • one year ago
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    find the exact values of the trig functions of the angle below. (Use the Pythagorean Theorem to find the third side)

  4. anonymous
    • one year ago
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    There is a triangle with a hypotenuse of 41 and an adjacent of 9, the opposite is missing.

  5. Vocaloid
    • one year ago
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    |dw:1443394526440:dw| something like this?

  6. Vocaloid
    • one year ago
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    did I get the drawing right or...?

  7. anonymous
    • one year ago
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    yes

  8. Vocaloid
    • one year ago
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    ok, do you know how to find the length of the missing side?

  9. anonymous
    • one year ago
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    yeah it's where you do a^2 + b^2 = c^2 and then you square root it

  10. Vocaloid
    • one year ago
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    ok, so what's the missing side?

  11. anonymous
    • one year ago
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    I got 42, but my pre calc book got 40, so I really don't know what I did wrong

  12. Vocaloid
    • one year ago
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    9^2 + x^2 = 41^2

  13. Vocaloid
    • one year ago
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    solve for x

  14. anonymous
    • one year ago
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    ohh, okay. I got 40 as my answer. Thank you so much

  15. Vocaloid
    • one year ago
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    yup, x = 40 so now we have all three sides, now comes the easy part|dw:1443395117726:dw|

  16. Vocaloid
    • one year ago
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    so, our trig functions are: sin(theta) = opposite/hypotenuse cos(theta) = adjacent/hypotenuse tan(theta) = opposite/adjacent

  17. Vocaloid
    • one year ago
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    csc(theta) = hypotenuse/opposite sec(theta) = hypotenuse/adjacent cot(theta) = adjacent/opposite

  18. Vocaloid
    • one year ago
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    now all you need to do is look at the triangle and plug in the numbers where they belong

  19. anonymous
    • one year ago
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    I know how to do those parts. They are the easiest. :b but I have another triangle with the opoosite being 15, the adjacent being 8, & the hypotenuse missing. I did the eexact same thing in order to solve it , but I got 12.68 and my book got 17.

  20. anonymous
    • one year ago
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    @Vocaloid

  21. Vocaloid
    • one year ago
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    15^2 + 8^2 = x^2

  22. anonymous
    • one year ago
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    so the opposite and adjacent are always a & b and the hypotenuse is always c?

  23. Vocaloid
    • one year ago
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    yes

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