Integration

The integral of x^3 dx is:

• 1 x^4 / 4 + c
• 2 3x^2 + c
• 3 x^3 / 3 + c
• 4 x^4 + c

The integral of cos x dx is:

• 1 -cos x + c
• 2 cos x + c
• 3 -sin x + c
• 4 sin x + c

The integral of 1/x dx is:

• 1 ln|x| + c
• 2 -1/x2 + c
• 3 x + c
• 4 1/x2 + c

The definite integral of 2x dx from 0 to 3 is:

• 1 6
• 2 3
• 3 9
• 4 18

The area under y = x from x = 0 to x = 4 is:

• 1 16
• 2 8
• 3 4
• 4 2