Question

multiplication rule for integration general form?

Answer 1

It's known as integration by parts
I'll explain you

Answer 2

ok thanks ash its just i forgot it

Answer 3

Let u and v be two functions. we need to find the integral of
\[\int uv \]
let u be a function which is easily integrable so, the integration of uv is
\[\int uv= v\int u-\int (dv \int u)\]
where dv is the derivative of v.
Do you understand till here?

Answer 4

yap just wanted the formula thanks ash. oh and if we have x^2e then which will be u and which will v???

Answer 5

e^x is easily integrable, so it'll be u
v= x^2
you will have to use this formula twice:)

Answer 6

ok thank you so much ash :)

Answer 7

welcome :D