Find sin `theta` and tan`theta` if `cos theta =-3/5` and `theta` lies in the third quadrant.

Explanation

To solve the problem of finding \( \sin \theta \) and \( \tan \theta \) given that \( \cos \theta = -\frac{3}{5} \) and \( \theta \) lies in the third quadrant, we can follow these steps:

### Step 1: Identify the Quadrant Characteristics
In the third quadrant:
- \( \sin \theta \) is negative.
- \( \tan \theta \) is positive.

### Step 2: Use the Pythagorean Identity
...