Asked by Farva

If the region in the first quadrant bounded by the graph of y=cosx and the interval[0,pi/2] is bisected by the line x=c, guess c.
Answered by Reiny
You need the
integral [cosx]dx from0 to c = integral [cosx]dx from c to π/2
sinc = sin π/2 - sinc
2sinc = sin π/2
sinc = 1/2
c = π/6

Why are you supposed to "guess" ?
Answered by Farva
thats what the question said
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