A. x1/x-2(1+log x)
B. x1/x-2(1-log x)
C. 1+log x
D. x1/x-2
d/dx {Tan-14x/1+5x2+Tan-12+3x/3-2x}=
If x2+y2=a2 then dy/dx=
If y=(x+√x2-1)m then (x2-1)y2+xy1=
The derivative of cosec-1(ax)w.r.to x is