Hi there,

Urgently need help with the following questions!

1.Integral of cos^8xsin^3xdx

2.Integral of (x^2 +6x)dy=y^2dx-12dy

3.Determinant of:

3-λ -1 2

5 -3-λ 5

1 -1 2-λ

Thanks so much if you can help! xxx

- February 17th 2008, 08:58 AMConfuzzled?Integration, Differential Equation and Determinant of a Matrix
Hi there,

Urgently need help with the following questions!

1.Integral of cos^8xsin^3xdx

2.Integral of (x^2 +6x)dy=y^2dx-12dy

3.Determinant of:

3-λ -1 2

5 -3-λ 5

1 -1 2-λ

Thanks so much if you can help! xxx - February 17th 2008, 09:30 AMangel.white
- February 17th 2008, 10:07 AMSoroban
Hello, Confuzzled!

Quote:

2. Integral of

We have: .

. . . . . . . . .

Separate variables: .

Integrate: .

. . and we have: .

I'll let*you*simplify it . . .