If f(x) = 2^x, then what is $\int^{10}_2\frac{f'(x)}{f(x)}dx$ equal to?

If $\rm \int^0_{-2} f(x)dx=k$, then $\rm \int^0_{-2}|f(x)|dx$ is

If the function f(x) = x² - kx is monotonically increasing in the interval (1, ∞), then which one of the following is correct?

What is the area bounded by y = [x], where [⋅] is the greatest integer function, the x-axis and the lines x = -1.5 and x = -1.8?