Question

find the integral from -1 to 1 of √1+x dx

Answer 1

integral by u-sub
u = 1+x

Answer 2

How do you get the 2/3?

Answer 3

hey, thats wrong. dont listen to zeph

Answer 4

That's wrong

Answer 5

my bad

Answer 6

did you try the u = 1+x
by yourself first ?

Answer 7

\[\int\limits_{-1}^{1}\sqrt{1+x} \mathrm d x\] Let u=x+1, then du=dx
Find new limits of integration\[=\int\limits \sqrt{u} \mathrm d u\]

Answer 8

remember square root is an exponent of 1/2

Answer 9

Am I wrong? @Xeph

Answer 10

i'm not sure, i got