if you don't know, then plz tell me what a reciprocal is
2007-10-05 12:31:32 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The reciprocal of -1/x at x=0 doesn't even exist since -1/x isn't even defined at all at 0.
2007-10-05 12:42:43 · answer #1 · answered by J Bareil 4 · 0⤊ 0⤋
A reciprocal is the inverse of a number. The multiplication of which is always equal to 1.
Example; 2/3 the reciprocal is 3/2
2/3x3/2=6/6=1
5 the reciprocal is 1/5
5/1x1/5=/55=1
You have -1/x If x =0 Then you have -1/0. There is no such thing as division by 0. It is considered undefined.
The reciprocal would be 0/-1. -1/0x0/-1=0/0 =0 (answer must be 1 for them to be reciprocal. There is no answer.
2007-10-05 12:40:00 · answer #2 · answered by Ed S 4 · 1⤊ 0⤋
The reciprocal of -1/x = x/-1 if x does NOT equal 0
However, -1/x has no reciprocal if x = 0.
A number times its reciprocal = 1
If x = 0 then (-1/x)(x/-1) = (-1/0)(0/-1) = 0/0 which
does NOT equal 1, since 0/0 is undefined.
2007-10-05 12:46:15 · answer #3 · answered by Marvin 4 · 0⤊ 0⤋
Hey there!
The reciprocal of -1/x is -x. If x=0, then the reciprocal of -1/0 is -0/1 i.e. 0. It is the same as saying that the reciprocal of infinity is 0.
Hope it helps!
2007-10-05 13:05:16 · answer #4 · answered by ? 6 · 0⤊ 0⤋
Well the reciprocal of any fraction is to switch the numerator with the denominator:
Say if you have (A/B), its reciprocal is simply (B/A):
In your case i think the question says x cannot equal 0, with the not equal sign being, = with a slash through it,
It says that x=0, because (-1/0) is undefined since you can't divide by zero, so the answer is:
(x/-1)
2007-10-05 12:41:35 · answer #5 · answered by NBL 6 · 0⤊ 0⤋
Reciprocal of a fraction means that same number with the numerator being the denominator and the denominator being the numerator, as in y/x is the reciprocal of x/y.
Reciprocal of -1/x = x/-1, and since any number divided by 1 is equal to that number, then the reciprocal becomes -x.
Note that x/-1 is also similar to -x/1; Also, when multiplying or dividing numbers with different signs, the answer is always a negative (-); with same signs, the answer is always positive.
Hope this helps :)
2007-10-05 13:07:55 · answer #6 · answered by mitzbitz 2 · 0⤊ 0⤋
The reciprocal of -1/x = -x
2007-10-05 12:34:56 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Reciprocal Of X
2016-11-16 17:04:54 · answer #8 · answered by ? 4 · 0⤊ 0⤋
Technically -1/x is not defined as x=0
but -x/1 = 0 of x = 0
2007-10-05 12:36:15 · answer #9 · answered by Monah 3 · 0⤊ 0⤋
Reciprocal value of a number A is B if A*B=1
With fractions it's easy to get a reciprocal value, you just invert the fraction.
In your case that would be
A=-1/x
B=1/(-1/x) => x/-1 => -x
Hence reciprocal of -1/x i -x ;)
2007-10-05 12:38:41 · answer #10 · answered by Alderon 2 · 0⤊ 0⤋