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electronics and communication engineering exam question papers
1. In the Taylor series expansion of exp(x) + sin(x) about the point x = p , the coefficient of (x - p )2 is
(A): 0.5 exp (p )
(B): exp (p )
(C): exp (p ) + 1
(D): exp (p ) - 1
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By: guest on 02 Jun 2017 12.56 am
f(x) = ex + sin x Coefficient of (x - p)2 = 1 / 2! f''(x) f'(x) = ex + cos x f'(x) = ex - sin x f''(x)|x=p = ep Thus coefficient of (x - p )2 = 0.5 .
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