If f(x) is odd and the integral from -3 to 7 of f(x) dx is 11, then the integral from 3 to 7 of f(x) dx is __

Answer 1

If f(x) is odd, then f(-x) = -f(x)

So, integral from -3 to 0 is minus the integral from 0 to 3

So, what's left is just integral from 3 to 7 = 11.