SOLUTION: Find the exact value of sin x and cos x for the acute angle x such that tan x= 4/5

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Question 351417: Find the exact value of sin x and cos x for the acute angle x such that tan x= 4/5
Answer by jjordan95(63)   (Show Source): You can put this solution on YOUR website!
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SOHCAHTOA
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If you recall the unit circle, you know that the sin of something is essentially the 'y' component. The 'y' component is basically the opposite side.
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If you recall the unit circle again, you know that the cos of something is essentially the 'x' component. The 'x' component is basically the adjacent side.
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Therefore, if , then
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Since you have the tangent, , you can easily see that and

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