Incorrect:

note that

Incorrect: your constant is off. check again (you can differentiate the answer to see that you are wrong)2) integrate: sinx/(squareroot of cosx) dx

I got: -0.5(squareroot of cosx) +c

Incorrect again: are you sure you didn't mean ? your answer would still be wrong, but you would have been closer3) integrate (e^x)squareroot(e^x+4) dx

I got: 0.5(squareroot e^x+4) +c

correct4) integrate xe^(x^2+1) dx

I got: 0.5e^(x^2+1) +c

Correct5) integrate 1/((squareroot x)((squareroot x) +1)^2) dx

Sorry about this 1 a bit hard to read.

It is 1 divided by (rootx)(rootx plus 1)squared

anyways..I got: -2/(squareroot x +1) +c

Okie dokieLAST ONE =P

incorrect:6) integrate (x^2)/(1+x^6) done through two substitutions

let u=x^3 , then let u=root3 tan theta

In the end i got: (squareroot 3)*arctan((x^3)/(squareroot 3)) +c

arctan is tan^-1 for anyone maths illiterate reading this.

I hope to see 6 yeses in your answers and thanks in advance =P

just a substitution of u = x^3 will do. no second substitution is needed, and trig sub is definitely not needed