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Let $\theta$ be an acute angle. If $\cos \theta = \frac{3}{11},$ then what is $\sin \theta?$

 Jan 11, 2024
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sin (theta)  =   sqrt  [ 1 - (3/11)^2 ]  =  sqrt [ 1 - 9 /121] =   sqrt [ 112] / 11  = 4sqrt (7) / 11

 

 

cool cool cool

 Jan 11, 2024

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