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SugarRainbow

without using a calculator find sin beta and cos beta if tan beta=3/4 and sin beta= >0.

  • one year ago
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  1. satellite73
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    think of a 3 - 4 - 5 right triangle, take the appropriate ratios

    • one year ago
  2. SugarRainbow
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    how did you get 3-4-5?

    • one year ago
  3. satellite73
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    |dw:1347251372575:dw|

    • one year ago
  4. SugarRainbow
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    oh wait isn't tangent like the adjacent angles or something?

    • one year ago
  5. satellite73
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    you have tangent it \(\frac{3}{4}\) draw the above triangle, you get the hypotenuse is 5 either by pythagoras or by memory

    • one year ago
  6. satellite73
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    no, it is not adjacent angles. if you are using right triangle trig, tangent is the length of the "opposite" side over the "adjacent" side

    • one year ago
  7. SugarRainbow
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    okay umm so whats sin?

    • one year ago
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