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If `int f(x)dx=psi(x)`, then `int x^5f(x^3)dx`A. ` (1)/(3)[x^(3)Psi(x^(3))-int x^(2) Psi(x^(3))dx]+c`B. ` (1)/(3)x^(3)Psi(x^(3))-3int x^(3) Psi(x^(3))dx+c`C. ` (1)/(3)x^(3)Psi(x^(3))-int x^(2) Psi(x^(3))dx+c`D. ` (1)/(3)[x^(3)Psi(x^(3))-int x^(3) Psi(x^(3))dx]+c` |
Answer» Correct Answer - C ` "Given that " int f(x)dx=Psi(x). " Let " I=int x^(5)f(x^(3))dx` `"or " I=int t f(t)(dt)/(3) " " ("Put " x^(3)=t)` `=(1)/(3)[t Psi(t)-int Psi(t)dt]+c` ` :. I=(x^(3))/(3) Psi(x^(3))-(1)/(3)int3x^(2)Psi(x^(3))dx+c` `=(x^(3))/(3)Psi(x^(3))-int x^(2) Psi(x^(3))dx+c` |
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