求下列函数的导数:(1)y=sin^4(π/4)+cos^4(π/4); (2)y=(1+√x)/(1-√x)+(1-√x)/(1+√x)
问题描述:
求下列函数的导数:(1)y=sin^4(π/4)+cos^4(π/4); (2)y=(1+√x)/(1-√x)+(1-√x)/(1+√x)
答
求下列函数的导数:(1)y=sin^4(π/4)+cos^4(π/4); (2)y=(1+√x)/(1-√x)+(1-√x)/(1+√x)