# Math Help - integration

1. ## integration

how would I integrate this???

1/sqrt(t + 4)

can I use u substitution
When i tried this I got the answer of
-2/3(t + 4)^(-3/2) + C
Is this right, or do I need to use a different method???

2. Originally Posted by mandy123
how would I integrate this???

1/sqrt(t + 4)

can I use u substitution
When i tried this I got the answer of
-2/3(t + 4)^(-3/2) + C
Is this right, or do I need to use a different method???
The substitution is right! You need to add to the power, not substract.

3. ok, so would the answer would be
2(t + 4)^1/2 + C

4. Originally Posted by mandy123
ok, so would the answer would be
2(t + 4)^1/2 + C
Looks good to me! You can differentiate and see if you get the integrand back.