Trigonometric EquationHard
Question
If y = tan-1 
+ tan-1 
+ tan-1 
+ ..... up to n terms, then 
is equal to
+ tan-1 + tan-1 + ..... up to n terms, then is equal toOptions
A.
B.
C.
D.0
Solution
y = tan-1 
+ tan-1 
+........+ tan-1 
y = tan-1(x + n) - tan-1x
+ tan-1 +........+ tan-1 y = tan-1(x + n) - tan-1x
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