If 0 < k < (pi/2) and the area under the curve y = cos x from x = k to x = (pi/2) is 0.1, then k = A) 1.471 B) 1.414 C) 1.277 D) 1.120 E) 0.436
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Originally Posted by frozenflames If 0 < k < (pi/2) and the area under the curve y = cos x from x = k to x = (pi/2) is 0.1, then k = A) 1.471 B) 1.414 C) 1.277 D) 1.120 E) 0.436 Thus, the area is, Using the fundamental theorem, Thus, Thus, Using the arc sine we get,
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