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trig

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In triangle $ABC$, we have $\angle A = 90^\circ$ and $$\sin B = \frac{4}{9}$$. Find $\cos C$.

Jan 12, 2022

#1
+13577
+1

Find cos C.

Hello Guest!

If the sin B = 4/9 in a right triangle, then the ratio of the sides is

a: b: c = 9: 4: 3.

So is

cos C = 4/9

!

Jan 12, 2022