Expand `|sqrtt-1/sqrtt|^3`

Equations of the tangent and normal to the curve x=sqrtt, y=t- (1)/(sqrt t) at the point t=4 are respectively

Expand (a+2)(a-1)

If x=sin sqrtt,y=e^sqrtt,then (dy)/(dx) =

Expand (x^2+1/x)^3

Expand (a-4)^3

Expand (1+x)^-3 .

Expand (1+x)^-2 .

Expand (2x-3)^(6)