[" 13.If "int(0)^(oo)e^(-xx)dx=(1)/(a)" ...

[" 13.If "int_(0)^(oo)e^(-xx)dx=(1)/(a)" ,then "int_(0)x^(n)e^(-x)dx" is "?],[[" (A) "((-1)^(n)n!)/(a^(n+1))," (B) "((-1)^(n)(n-1)!)/(a^(n))],[" (C) "(n!)/(a^(n+1))," (D) None of these "]]

[" 13.If "int(0)^(oo)e^(-xx)dx=(1)/(a)" ,then "int(0)x^(n)e^(-x)dx" is...
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IfI(m , n)=int0^1x^(m-1)(1-x)^(n-1)dx ,(m , n in I ,m ,ngeq0),t h e n...
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int(n)^(n+1)f(x)dx=n^(2)+n then int(-1)^(1)f(x)dx=
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If I(n)=int(0)^(1)x^(n)e^(-x)dx for n in N, then I(7)-I(6)=
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Let m,n be two positive real numbers and define f(n)=int(0)^(oo)x^(n-1...
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Let m,n be two positive real numbers and define f(n)=int(0)^(oo)x^(n-1...
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If =int(0)^(1) x^(n)e^(-x)dx "for" n in N "then" I(n)-nI(n-1)=
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Let n in N such that n gt 1. Statement-1: int(0)^(oo) (1)/(1+x^(n))d...
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If I(m)=int(0)^(oo) e^(-x)x^(n-1)dx, "then" int(0)^(oo) e^(-lambdax) x...
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