(0,π/2)[sin(x)]^ndx。sinx的n次方定積分公式為(0,π/2)[sin(x)]^ndx,當(dāng)n等于奇數(shù)時(shí)是面積相抵正余弦函數(shù)的n次方在0到π/2的積分公式,那么根據(jù)三角函數(shù)的性質(zhì),積分區(qū)間變成了0到π,正弦函數(shù)的積分值變?yōu)橹暗膬杀丁?/div>
(0,π/2)[sin(x)]^ndx。sinx的n次方定積分公式為(0,π/2)[sin(x)]^ndx,當(dāng)n等于奇數(shù)時(shí)是面積相抵正余弦函數(shù)的n次方在0到π/2的積分公式,那么根據(jù)三角函數(shù)的性質(zhì),積分區(qū)間變成了0到π,正弦函數(shù)的積分值變?yōu)橹暗膬杀丁?/p>