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definite integral (Question)

rahulksinha saidSat, 15 Aug 2009 13:30:59 -0000 ( Link )

If integration 0 to x :- f(x)sintdt = constant ; x~(0,2pie) and f(pie) = 2, find f(pie/2) ?

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  1. djchalil saidTue, 18 Aug 2009 13:37:47 -0000 ( Link )

    integrn 0 to x; f(x)sintdt = Const., i.e, f(x)* integrn 0 to x;sintdt = const., i.e, f(x)(1-cos x) = const., hence, subst ‘pi’ in above eqn, we get, f(pi)2 = const., but f(pi) = 2, so, const = 4., subst ‘pi/2’ in old eqn once again, we get, f(pi/2)*1 = const = 4., so, f(pi/2) = 4.

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  2. rishu _gupta saidSat, 29 Aug 2009 18:44:31 -0000 ( Link )

    What’s the answer. Is the answer 0.

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