Question

a stone projected from ground with certain speed at an angle theta with horizontal at its maximum height H1 when it is projected with the same speed at an angle theta with vertical attends height H to the horizontal range of the projectile is

Answer 1

if stone is projected from ground then Range=2u sin theta×cos theta/g
If stone is projected from the max. H1 then range=2u sin theta cos theta +ug× under root 2h/g

Answer 2

If the stone is projected from ground, then it has range of 2u sin theta and cos theta/g.

This is however it turn to get attention on stone is projected from the maximum efforts.

The H1 range is 2u and sin theta cos theta+ugx under root 2h/g.

So, stone is projected with a velocity of V in the both cases.