MHT CET20243 May 2024Morning ShiftMathematicsInverse Trigonometric FunctionsActual
The number of real solutions of ⁻¹ x(x+1) + ⁻¹ x^2+x+1 = 2 is
Options
- Aone
- Bzero
- Ctwo
- Dinfinite
Correct answer
C. two
Step-by-step solution
⁻¹ x(x+1) + ⁻¹ x^2+x+1 = 2 ⁻¹ x(x+1) is defined when x(x+1) 0...(i) ⁻¹ x^2+x+1 is defined when x(x+1)+1 1 or x(x+1) 0...(ii) From (i) and (ii), x(x+1)=0 x=0 or -1 Hence, number of solutions is 2 .