If `tantheta+sintheta=m` and `tantheta-sintheta=n ,` then `m^2-n^2`=

Explanation

To solve the problem, we need to find the value of \( m^2 - n^2 \) given that \( m = \tan \theta + \sin \theta \) and \( n = \tan \theta - \sin \theta \).

### Step-by-Step Solution:

1. **Write down the expressions for \( m \) and \( n \)**:
\[ m = \tan \theta + \sin \theta \]
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