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| 1. |
Let tan^(-1)x+tan^(-1)y=a+b tan^(-1)((x+y)/(1-xy)) then find the sum of all possible distinct values of a and b . |
| Answer» Let tan^(-1)x+tan^(-1)y=a+b tan^(-1)((x+y)/(1-xy)) then find the sum of all possible distinct values of a and b . | |