Answer:
For this case we know that
. For this case we want to find:

Since the tan and arctan functions are inverse when we apply bth at the same time we got the identity function so then we got for this case:

Explanation:
For this case we know that
. For this case we want to find:

Since the tan and arctan functions are inverse when we apply bth at the same time we got the identity function so then we got for this case:
