问题描述: 求三角函数的单调区间形如y=asin(bx+c)的函数的单调区间,求指教 1个回答 分类:数学 2014-12-11 问题解答: 我来补答 当a>0时递增区间为[-c/b-π/2b+2kπ/b,-c/b+π/2b+2kπ/b],k∈Z递减区间为[-c/b+π/2b+2kπ/b,-c/b+3π/4b+2kπ/b],k∈Z当a0正好相反)递增区间为[-c/b+π/2b+2kπ/b,-c/b+3π/4b+2kπ/b],k∈Z递减区间为[-c/b-π/2b+2kπ/b,-c/b+π/2b+2kπ/b],k∈Z 展开全文阅读