Check whether the following equation `tan^(4)theta+tan^(6)theta=tan^(3)thetasec^(2)theta` is an identity or not ?

Explanation

To determine whether the equation \( \tan^4 \theta + \tan^6 \theta = \tan^3 \theta \sec^2 \theta \) is an identity, we will manipulate the left-hand side and see if we can simplify it to match the right-hand side.

### Step-by-Step Solution:

1. **Start with the left-hand side (LHS)**:
\[ \tan^4 \theta + \tan^6 \theta \]
...