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OpenStudy (anonymous):
WILL MEDAL AND FAN!! Diagram included In ∆ABC, what is the value of cos B? A. 5/4 B. 3/4 C. 3/5 D. 4/5 E. 4/3
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OpenStudy (anonymous):
Ive tried Sine and Cosine
OpenStudy (anonymous):
I see no diagram
OpenStudy (anonymous):
|dw:1400966694519:dw|
OpenStudy (anonymous):
cos= adjacent/hypotenuse
OpenStudy (anonymous):
you will first need to know the definiton of cos which is adjacent/hypotenuse 3 is the side adjacent to B and 5 is the hypotenuse. The largest side of the triangle is the hypotenuse. 4 would be the side that is opposite of B 3/5=cos(B)
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