$\"\"$

The binomial expression is $\"\"$ .

Find the third term coefficient in the $\"\"$ .

$\"\"$ term in the binomial expansion $\"\"$ is $\"\"$ , where $\"\"$ .

Here $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ in the formula.

$\"\"$

Thus, the coefficient of the third term in the expansion of $\"\"$ is $\"\"$ .

$\"\"$

Third term coefficient in the expansion of $\"\"$ is $\"\"$ .