Sponsor Area

Integrals

Question
CBSEENMA12035678

Evaluate: integral fraction numerator left parenthesis straight x plus 3 right parenthesis straight e to the power of straight x over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction dx

Solution
integral fraction numerator left parenthesis straight x plus 3 right parenthesis straight e to the power of straight x over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction dx
space equals integral fraction numerator left parenthesis straight x plus 5 minus 2 right parenthesis straight e to the power of straight x over denominator left parenthesis straight x plus 5 right parenthesis end fraction dx
equals integral open square brackets fraction numerator left parenthesis straight x plus 5 right parenthesis over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction minus fraction numerator 2 over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction close square brackets straight e to the power of straight x dx
space equals integral open square brackets fraction numerator 1 over denominator left parenthesis straight x plus 5 right parenthesis squared end fraction minus fraction numerator 2 over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction close square brackets straight e to the power of straight x dx
space This space is space of space the space form
space integral straight e to the power of straight x left square bracket straight f left parenthesis straight x right parenthesis plus straight f apostrophe left parenthesis straight x right parenthesis right square bracket dx space equals space straight e to the power of straight x straight f left parenthesis straight x right parenthesis plus straight C
space space rightwards double arrow space space space integral open square brackets fraction numerator 1 over denominator left parenthesis straight x plus 5 right parenthesis squared end fraction minus fraction numerator 2 over denominator left parenthesis straight x plus 5 right parenthesis cubed end fraction close square brackets straight e to the power of straight x dx
space space space space space equals space fraction numerator straight e to the power of straight x over denominator left parenthesis straight x plus 5 right parenthesis squared end fraction plus straight C

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