SOLUTION: If x and the reciprocal of y are the same which of the following must be true? X=y=1 x-y=1 xy=1 xy=-1 x+y=-1

Algebra.Com
Question 1188575: If x and the reciprocal of y are the same which of the following must be true?
X=y=1
x-y=1
xy=1
xy=-1
x+y=-1

Answer by ikleyn(52804)   (Show Source): You can put this solution on YOUR website!
.

The condition says  x = ,


which implies  xy = 1.    ANSWER

Solved, answered and explained.



RELATED QUESTIONS

If x and y are odd integers, which of the following must be an odd integer? (A) x + y... (answered by vksarvepalli)
Factorize the following:... (answered by solver91311)
If xy > 1 and z < 0, which of the following statements must be true? I. x > z II. (answered by jim_thompson5910)
Please help! If x,y,z are integers greater than 1 and if xy =24 and yz=56,which of the... (answered by Edwin McCravy,Theo)
suppose that 1/x - 1/y = 1/z which of the following is equal to z ? a y-x b x-y c... (answered by palanisamy)
If {{{1/x +1/y =10}}} and {{{x+y=2}}}, what is the value of... (answered by ikleyn)
If x is an integer greater than 1 and if y = x + (1/x), which of the following (answered by jim_thompson5910)
Factor the following:... (answered by Edwin McCravy)
MUST question if p and x are non negative numbers and y is a non positive number, which... (answered by richard1234)