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avatar+204 

Let \theta be an acute angle. If $\cos \theta = \frac{1}{4},$ then what is $\sin \theta?$

 May 30, 2024
 #1
avatar+130085 
+1

sin theta =  [sqrt (4^2 -1^2) ] /  4  =  sqrt (15) / 4

 

cool cool cool

 May 30, 2024

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