Question

2.
If x <0, then which of the following must be positive
(A) - |x|/x
(B) -x^2
(C) -x^-1
(D) None of these​

Answer 1

Answer:

A) - |x|/x

because x is negative number

and in here the numerator "x" is in mode which convert it into positive. The denominator "x" is also negative which will cancel the negative sign which is outside. So, it becomes positive.

Answer 2

Answer:

$option \: b \: \: is \: \: corrct \\ explanation \\ \: { - x}^{2} \\ (since \: \: we \: \: know \: \: that \\ ( - ) \times ( - ) = ( + )) \\ so \: \: (- x) \times ( - x) = x \\ hence \: \: option \: \: b \: \\ is \: \: correct$