Q29 of 45 Page 7

Evaluate the following integrals as a limit of sums:


Formula used:



where,







Let,



Here, f(x) = cos x and a = 0




Now, by putting x = 0 in f(x) we get,


f(0) = cos 0


f(h)


= cos h


Similarly, f(2h)


= cos 2h



We know,



Here A = 0 and B = h


Therefore,




















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