Find the angle of projection at which horizontal range and maximum height are equal.

Explanation

To find the angle of projection at which the horizontal range and maximum height of a projectile are equal, we can follow these steps:

### Step 1: Write the formulas for maximum height and horizontal range.
The maximum height \( h \) of a projectile is given by:
\[ h = \frac{u^2 \sin^2 \theta}{2g} \]
where \( u \) is the initial velocity, \( \theta \) is the angle of projection, and \( g \) is the acceleration due to gravity.
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