Question
If tan theta = 5/12 and theta is acute, then the value
of (1 - sin theta)/(1 + sin theta) is:Solution
If tan theta = 5/12, then opposite = 5, adjacent = 12 Hypotenuse = 13 So, sin theta = 5/13 Now, (1 - sin theta)/(1 + sin theta) = (1 - 5/13)/(1 + 5/13) = (8/13)/(18/13) = 8/18 = 4/9
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