MHT CET202312 May 2023Morning ShiftMathematicsInverse Trigonometric FunctionsActual
If x= cosec ( ⁻¹ ( ( ⁻¹ ( ( ⁻¹ a ) ) ) ) ) , a [0,1]
Options
- Ax^2- a ^2=3
- Bx^2+ a ^2=3
- Cx^2- a ^2=2
- Dx^2+ a ^2=2
Correct answer
B. x^2+ a ^2=3
Step-by-step solution
aligned & x= cosec ( ⁻¹ ( ( ⁻¹ ( ( ⁻¹ a ) ) ) ) ) & = cosec ( ⁻¹ ( ( ⁻¹ ( ( ⁻¹ 1 1- a ^2 ) ) ) ) ) & = cosec ( ⁻¹ ( ( ⁻¹ ( 1 1- a ^2 ) ) ) ) & = cosec ( ⁻¹ ( ( ⁻¹ 1 2- a ^2 ) ) ) & = cosec ( ⁻¹ ( 1 2- a ^2 ) ) & = cosec ( cosec ⁻¹ ( 3- a ^2 ) ) & x= 3- a ^2 & x^2+ a ^2=3 aligned