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AP EAMCET201824 Apr 2018Evening ShiftMathematicsInverse Trigonometric FunctionsActual

If Tan ⁻¹ 1 3 + Tan ⁻¹ 1 7 + Tan ⁻¹ 1 13 + + Tan ⁻¹ 1 n^2+n+1 = Tan ⁻¹ , then =

Options

  1. An n+2
  2. Bn n+1
  3. Cn+1 n+2
  4. Dn-1 n+2

Correct answer

A. n n+2

Step-by-step solution

No solution. Refer to answer key.

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