偶関数と奇関数の定積分

問題次の定積分を求めよ。$${\small (1)}~\int_{-2}^{2} (x^4+2x^3+3x^2+4x+5)dx$$$${\small (2)}~\int_{-{\large \frac{\pi}{2}}}^{{\large \frac{\pi}{2}}}(\sin{x}+\cos{x})dx$$