奇函数f(x)定义域是(k,2k+3),则函数g(x)=(k+2)x^2+(k-1)x+3的递减区间是

奇函数f(x)定义域是(k,2k+3),则函数g(x)=(k+2)x^2+(k-1)x+3的递减区间是
奇函数f(x)定义域是(k,2k+3),则函数g(x)=(k+2)x^2+(k-1)x+3的递减区间是

奇函数f(x)定义域是(k,2k+3),则函数g(x)=(k+2)x^2+(k-1)x+3的递减区间是
奇函数定义域关于原点对称,k=-（2k+3）,k=-1
g（x）=x^2-2x+3=（x-1）^2+2
减区间（-无穷,1）