MHT CET20242 May 2024Morning ShiftMathematicsInverse Trigonometric FunctionsActual
Considering only the principal values of inverse function, the set A= x 0, ⁻¹(2 x)+ ⁻¹(3 x)= 4
Options
- Ais an empty set.
- Bis a singleton set.
- Ccontains more than two elements.
- Dcontains two elements.
Correct answer
B. is a singleton set.
Step-by-step solution
aligned & ⁻¹(2 x)+ ⁻¹(3 x)= 4 & ⁻¹ [ 2 x+3 x 1-(2 x)(3 x) ]= 4 & 5 x 1-6 x^2 = 4 =1 & 6 x^2+5 x-1=0 & (x+1)(6 x-1)=0 & x=-1 or x= 1 6 & But, x 0 & x= 1 6 & ~A is a singleton set. aligned