# Calculus Homework #12 Due 5-25

Calculate the following definite integrals

1. $\int_0^3 (x^2+4x+3)dx$

2. $\int_0^{\frac{\pi}{4}}\sin xdx$

3. $\int_2^5 (x^3-\pi x^2)dx$

4. $\int_1^2\frac{1+y^2}{y}dy$