函数y=根号2sin(2x/5+π/4)的图像的对称轴同 函数y=2sin(2x/5+π/4)的图像的对称轴,
y=2sin(2x/5+π/4)的周期是T=2π/(2/5)=5π
∴ 两条相邻对称轴之间的距离是T/2=5π/2
∴ 数y=根号2sin(2x/5+π/4)的图像两条对称轴之间的距离是5π/2