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` For `lambda=11`, an integral pair (m,n) satisfying the equation isA. `(12,72)`B. `(12, 133)`C. `(13,74)`D. `(13,136)`

Sometimes we are just concerned with finding integral solutions to equ

1.	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` For `lambda=11`, an integral pair (m,n) satisfying the equation isA. `(12,72)`B. `(12, 133)`C. `(13,74)`D. `(13,136)`
Answer» Correct Answer - B

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