Mathematics, 05.01.2020 02:31 sunshine52577oyeor9
If x+y=1/x+1/y and x+y≠0, what is the value of xy?
Answers: 2
![x+y=\dfrac{1}{x}+\dfrac{1}{y}\\ \\x+y=\dfrac{y+x}{xy}\ [\text{Add fractions in the left side}]\\ \\1=\dfrac{1}{xy}\ [\text{Divide by }x+y \ (\text{it can be done since})\ x+y\neq 0]\\ \\xy=1\ [\text{Cross multiply}]](/tpl/images/0442/9087/cbad2.png)
Another question on Mathematics
Mathematics, 21.06.2019 19:00
The area of square garden is 300m squared. how long is the diagonal?
Answers: 1
Mathematics, 21.06.2019 21:10
What is the equation of a line passing through (-6,5) and having a slope of 1/3
Answers: 3
Mathematics, 22.06.2019 04:00
Equal rights is what a. equlaity b. standards c. sovereignty d. minority rights
Answers: 1
Mathematics, 22.06.2019 05:00
Ali was paid $75 for mowing a neighbor''s yard. this is one fourth of the amount of money she earned all summer
Answers: 1
You know the right answer?
If x+y=1/x+1/y and x+y≠0, what is the value of xy?...
Questions
Chemistry, 23.02.2021 09:30
Mathematics, 23.02.2021 09:30
Mathematics, 23.02.2021 09:30
History, 23.02.2021 09:30
Arts, 23.02.2021 09:30
Mathematics, 23.02.2021 09:30
Mathematics, 23.02.2021 09:30
Mathematics, 23.02.2021 09:30
Geography, 23.02.2021 09:30
Chemistry, 23.02.2021 09:40
Biology, 23.02.2021 09:40
Spanish, 23.02.2021 09:40
