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AP EAMCET2020MathematicsInverse Trigonometric Functions

If Tan ⁻¹ [ 1 1+2 ]+ Tan ⁻¹ [ 1 1+(2)(3) ]+ Tan ⁻¹ [ 1 1+(3)(4) ]+ + Tan ⁻¹ [ 1 1+n(n+1) ]= Tan ⁻¹ , then =

Options

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

Correct answer

D. n n+2

Step-by-step solution

No solution. Refer to answer key.

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