Question 1105188
a) 6n^-2 <4n^-1; this is 6/n^2 < 4/n.  The one on the left is always positive, the one on the right always negative, so it can't be this.

b) n/4 > -6n^-1.  n/4 > - (6/n).  The one on the left is always negative, the one on the right is always positive., so it can't be this.

c) 6n^-1 < 4n^-1  6/n <4/n.  Since n is negative, that is like saying 6 >4, and that is true. ANSWER.

d) 4n^-1 > (6n)^-1   4/n > 1/(6n).  This would be the same as 4 < (1/6), and that is not true.