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

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satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0think of a 3  4  5 right triangle, take the appropriate ratios

SugarRainbow
 3 years ago
Best ResponseYou've already chosen the best response.0how did you get 345?

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1347251372575:dw

SugarRainbow
 3 years ago
Best ResponseYou've already chosen the best response.0oh wait isn't tangent like the adjacent angles or something?

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0you have tangent it \(\frac{3}{4}\) draw the above triangle, you get the hypotenuse is 5 either by pythagoras or by memory

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0no, it is not adjacent angles. if you are using right triangle trig, tangent is the length of the "opposite" side over the "adjacent" side

SugarRainbow
 3 years ago
Best ResponseYou've already chosen the best response.0okay umm so whats sin?
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