The equation of a curve is

a) find the equation of the tangents at the origin

b) find the equations of the real asymptotes

c) show that the numerical value of y is never greater than the corresponding value of x

d)show that the numerical value of y is always less than unity

My problem is with (c) and (d). I've done (a) and (b) already.

For (c),

Substitute

Now I don't know how to continue to make it such that it is greater or equal to 0, which then i can show that y is always lesser of equal to x.

Same problem with the next one. The is what stumble me.

Thanks!