NDA2015MathematicsFunctionsActual
The domain of the function f(x)= 1 |x|-x is
Options
- A[0, )
- B(- , 0)
- C[1, )
- D(- , 0]
Correct answer
B. (- , 0)
Step-by-step solution
aligned & f(x)= 1 |x|-x & |x|-x 0 aligned So x 0 ....(1) x =(- , 0) again |x|-x 0| x | x it is possible only when x is negative. x=(- , 0) ....(2) So from eq. (1) & eq. (2) domain x =(- , 0)