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In right triangle ABC with B = 90 , we have sin A = 2 cos A. What is sin A?

 Sep 25, 2021
 #1
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sin A = 1/3.

 Sep 25, 2021
 #2
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sin a / cos a = tan a = 2      a = 63.4349 degrees       sin a =.8944

 Sep 25, 2021

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