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JayDelV

  • one year ago

The point (−3, 1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of θ? Make sure to show all work.

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  1. anonymous
    • one year ago
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    Hm

  2. anonymous
    • one year ago
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    Hm

  3. JayDelV
    • one year ago
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    Im confused

  4. anonymous
    • one year ago
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    Same hold on i've got someone assisting me

  5. JayDelV
    • one year ago
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    Thank you (:

  6. anonymous
    • one year ago
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    tan theta=1/3

  7. JayDelV
    • one year ago
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    My internet just got back up

  8. JayDelV
    • one year ago
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    i don't understand how he did this

  9. Jhannybean
    • one year ago
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    A terminal angle |dw:1439372268495:dw|

  10. Jhannybean
    • one year ago
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    So now we just use SOHCAHTOA to find sin: cos: tan:

  11. Jhannybean
    • one year ago
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    \[\sf \text{ sin }\theta = \frac{opp}{hyp} \\ \\ cos ~\theta = \frac{adj}{hyp} \\ \\ tan ~\theta =\frac{opp}{adj} \]

  12. anonymous
    • one year ago
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    use the Pythagorean theorem to find the radius, r²= x² + y²

  13. anonymous
    • one year ago
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    so now you just gotta plug in x and y from your point into the above formula

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