Question

Please help?
Which is a counterexample that disproves the conjecture?

For all real numbers n, |n| > 0.

A.
n = –0.5

B.
n = 0

C.
n = 0.5

D.
n = 3

Answer 1

@NaeNaeHoowaahh

Answer 2

B. n = 0

Answer 3

B is correct

Answer 4

thanks allot =) but can you explain how to find the answer?

Answer 5

it never says \[n \ge0\]

Answer 6

|n| > 0

b tells us that n=0 so we replace the above equation n with 0

|0| > 0

|0| this means absolute value of zero which tells use anything inside the two bars turns into positive. In this case the absolute leaves us with 0 so no change at all


0 > 0

Now if we read this out we say zero is greater than zero.....now is that statement true. No zero is not greater than zero so b disproves |n| > 0 which was our ultimate goal

Answer 7

now is that statement true? woops this was suppose to be a question i was asking you.

Answer 8

oh ok =D makes allot more sense, thanks, really appreciate it XD

Answer 9

yeah sure thing.