AP EAMCET202422 May 2024Evening ShiftMathematicsInverse Trigonometric FunctionsActual
( _ n=1 ⁵⁰ ⁻¹ ( 1 1+n+n^2 ) )=
Options
- A26 25
- B25 26
- C50 51
- D52 51
Correct answer
A. 26 25
Step-by-step solution
aligned & ( _ n=1 ⁵⁰ ⁻¹ ( 1 1+n+n^2 ) ) = & ( _ n=1 ⁵⁰ ⁻¹ ( n+1-n 1+(n+1) n ) ) = & ( _ n=1 ⁵⁰ ( ⁻¹(n+1)- ⁻¹ n ) ) = & ( ⁻¹ 51- ⁻¹ 1 )= ( ⁻¹ 51-1 1+51 ) = & ( ⁻¹ 52 50 )= 52 50 = 26 25 aligned