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· quad-2
Quadratics & Vieta · Vieta's formulas
AMC 10 style
●●●○○ 5/10
~3 min
⏱ 0:00
If
r
r
r
and
s
s
s
are the roots of
x
2
−
6
x
+
4
=
0
x^2 - 6x + 4 = 0
x
2
−
6
x
+
4
=
0
, what is
1
r
+
1
s
\tfrac{1}{r} + \tfrac{1}{s}
r
1
+
s
1
?
vieta
manipulation
A
2
3
\tfrac{2}{3}
3
2
B
1
1
1
C
3
2
\tfrac{3}{2}
2
3
D
2
2
2
E
3
3
3
Submit
Hint 1 of 3
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