If 3x2 + 3y2 = 10xy, what is the ratio of x to y?
(a) 1:4
(b) 3:2
(c) 1:3
(d) 1:2
Answers
Answered by
1
Answer:
3x
2
+3y
2
=10xy
3(x^{2} + y^{2} ) = 10xy3(x
2
+y
2
)=10xy
\frac{x}{y} + \frac{y}{x} = \frac{10}{3}
y
x
+
x
y
=
3
10
Let \frac{x}{y}
y
x
be a:
a + \frac{1}{a} =\frac{10}{3}a+
a
1
=
3
10
Solve for a:
A = 1/3
THEREFORE , X/Y = 1/3
X:Y = 1:3
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