1.

`int_(-pi)^(pi)x^(4)sinxdx=?`A. `2pi`B. `pi`C. `0`D. none of these

Answer» `f(x)=x^(4)sinx`.
`:.f(-x)=(-x)^(4)sin(-x)=-(x^(4)sinx)=-f(x)`
`:.f(x)` is odd and hence `I=0`.


Discussion

No Comment Found