A cannon ball has the same range \( \mathrm{R} \) on a horizontal plane for two angles of projec...

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A cannon ball has the same range \( \mathrm{R} \) on a horizontal plane for two angles of projection. If \( h_{1} \) and \( h_{2} \) are the
P greatest heights in the two paths of which this is

W possible, then
(1) \( R=h_{1} h_{2} \)
(2) \( R=4 \sqrt{h_{1} h_{2}} \)
(3) \( R=\sqrt[3]{h_{1} h_{2}} \)
(4) \( R=\left(h_{1} h_{2}\right)^{1 / 2} \)
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