x+y : √xy = 4:1 then the ratio of x:y
please solve as soon as possible
Answers
Answered by
1
Step-by-step explanation:
x+y
=
1
4
x+y=4
xy
−equation 1
(x+y)
2
=4
2
xy
x
2
+y
2
+2xy=16xy
x
2
+y
2
−14xy=0
(x−y)
2
=12xy
x−y=2
3
xy
−equation 2
Solve equations 1 and 2
\begin{gathered}2x = (4+2\sqrt{3})\sqrt{xy} \\ \\ \sqrt{x} = (2+\sqrt{3})\sqrt{y} \\ \\ \frac{\sqrt{x}}{\sqrt{y}} = 2 + \sqrt{3} \\ \\ squaring\ both\ sides: \\ \\ \frac{x}{y} = 4+3+4\sqrt{3} \\ \\ = 7+4\sqrt{3} \\ \\ \end{gathered}
2x=(4+2
3
)
xy
x
=(2+
3
)
y
y
x
=2+
3
squaring both sides:
y
x
=4+3+4
3
=7+4
3
Answered by
0
Answer:
14-y/x
Step-by-step explanation:
Hope it is there in the options given to you
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