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Sometimes we are just concerned with finding integral solutions to equations. Consider the equation
`tan^(-1).(1)/m+tan^(-1).(1)/n=tan^(-1).(1)/lambda`, where `m,n, lambda in N`
How many positive integral solutions (m,n) exist for the eqution if `lambda=3`?

A

Two

B

Four

C

Six

D

Eight

Text Solution

Verified by Experts

The correct Answer is:
B
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