MHT CET202124 Sep 2021Morning ShiftMathematicsInverse Trigonometric FunctionsActual
If ⁻¹(2 x)+ ⁻¹(3 x)= 4 , where x>0 , then x=
Options
- A1
- B1 6
- C1 3
- D1 2
Correct answer
B. 1 6
Step-by-step solution
aligned & ⁻¹(2 x)+ ⁻¹(3 x)= 4 & ⁻¹ [ 2 x+3 x 1-(2 x)(3 x) ]= 4 4 = 5 x 1-6 x^2 =1 & 6 x^2+5 x-1=0 (6 x-1)(x+1)=0 x=-1, 1 6 aligned Since x>0 , we get x= 1 6