Differentiation and integration q (1 Viewer)

[username]

how would u integrate (e^x)(x^2)

also how would u differentiate or integrate e^2x^3

 

[Estel]

since u asked...

int[e^x.x^2]
= x^2e^x- int[2xe^x]
= x^2e^x- 2xe^x + 2e^x + C

the other one is just e^2x^4/4 + C

[hint: u do not understand this. test tomorrow. stress ]

 

[smallcattle]

?? i dont think u can int (e^x)(x^2).. atleast not in 2u

 

[bloodysunday]

well i dont know the first one, but the second:

y=e^2x^3
dy/dx=f'(x)e^f(x)
dy/dx=6x^2*e^2x^3

int. (e^2x^3)dx
= 1/f'(x)*f(x)+C
= 1/6x^2*e^2x^3+C

 

[username]

Are you sure about that last one estel. I asked you to differentiate??

 

[Estel]

I think you misread his q.

Integrate e^2x^3
e^2 is quite clearly a constant

ed:ahh you want to diff..
then it's 3e^2x^2
it did say integrate.

 

[username]

estel i think you misread my q. I asked you to differentiate it as well. Read it before you jump in.

 

[bloodysunday]

i thought he meant 2x^3 as an index of e

 

[Estel]

also how would u differentiate or integrate e^2x^3

so i integrated, since the dif is piss easy...
You're quite obviously a troll tho.

 

[username]

estel can you expl;ain why the 3 comes down and not the two>

 

[Estel]

d/dx x^n = nx^(n-1)
d/dx kx^n = knx^(n-1)
e^2 is a constant.
treat it as any other.

 

[username]

lol whats a troll? And if it was piss easy id be able to do it, since it aint for me, thats why im asking.

 

[Estel]

see answer above.
if in need of help...
ask question.