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OpenStudy (anonymous):
In right triangle ABC, ∠A and ∠B are complementary angles and sin A = 89. What is cos B? 817−−√17 89 17−−√9 17−−√8
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OpenStudy (anonymous):
8√17/17 8/9 √17/9 √17/8
geerky42 (geerky42):
\(\sin\theta = \dfrac{\text{Opp}}{\text{Hyp}}\) \(\cos\theta = \dfrac{\text{Adj}}{\text{Hyp}}\) |dw:1429550326475:dw|
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