MHT CET202416 May 2024Morning ShiftMathematicsInverse Trigonometric FunctionsActual
If ⁻¹ ( x 5 )+ cosec ⁻¹ ( 5 4 )= 2 , then the value of x is
Options
- A4
- B1
- C5
- D3
Correct answer
D. 3
Step-by-step solution
aligned & ⁻¹ ( x 5 )+ cosec ⁻¹ ( 5 4 )= 2 & ⁻¹ ( x 5 )+ ⁻¹ ( 4 5 )= 2 & ⁻¹ ( x 5 )= 2 - ⁻¹ ( 4 5 ) & ⁻¹ ( x 5 )= ⁻¹ ( 4 5 ) [ ⁻¹ x+ ⁻¹ x= 2 ] & ⁻¹ ( x 5 )= ⁻¹ ( 3 5 ) [ ⁻¹ x= ⁻¹ 1-x^2 ] & x=3 aligned