Question

the value of tan inverse 1 /7 + tan inverse 1 / 13 =​

Answer 1

In the attachment I have answered this problem.                    

Concept:                      tan inverse of x + tan inverse of y  = tan inverse of  ( (x+y)/ (1-xy))                        

See the attachment for detailed solution.

Answer 2

Step-by-step explanation:

This is the answer

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