Find the angle of projection for a projectile motion whose rang `R` is (n) time the maximum height `H`.

Explanation

To solve the problem of finding the angle of projection for a projectile motion where the range \( R \) is \( n \) times the maximum height \( H \), we can follow these steps:

### Step 1: Write the formulas for Range and Maximum Height
The formulas for the range \( R \) and maximum height \( H \) of a projectile are given by:
- Range:
\[ R = \frac{u^2 \sin 2\theta}{g} \]
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