Trigonometric EquationHard

Question

If y = tan^-1 + tan^-1 + tan^-1 + ..... up to n terms, then is equal to

Options

A.

B.

C.

D.0

Solution

y = tan^-1 + tan^-1 +........+ tan^-1
y = tan^-1(x + n) - tan^-1x

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