Step 1 :

$\"\"$ and $\"\"$ are Independent events.

$\"\"$ and $\"\"$ .

Find $\"\"$ .

Independent events :

If $\"\"$ and $\"\"$ are independent events, $\"\"$

Substitute corresponding values in the formula.

$\"\"$

Step 2 :

The events are $\"\"$ and $\"\"$ .

If A and B are mutually exclusive events,

$\"\"$

Substitute $\"\"$ and $\"\"$ in above equation.

$\"\"$

Solution :

$\"\"$