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Mathematics
Problem
Given the points
P
(
0
,
0
)
P(0,0)
P
(
0
,
0
)
,
Q
(
5
,
0
)
Q(5,0)
Q
(
5
,
0
)
and
R
(
2
,
4
)
R(2,4)
R
(
2
,
4
)
, which one of the following orders of listing the vertices will yield a positive value of the determinant
∣
x
1
y
1
1
x
2
y
2
1
x
3
y
3
1
∣
\begin{vmatrix}x_1 & y_1 & 1\\ x_2 & y_2 & 1\\ x_3 & y_3 & 1\end{vmatrix}
x
1
x
2
x
3
y
1
y
2
y
3
1
1
1
? a)
R
,
Q
,
P
R,\,Q,\,P
R
,
Q
,
P
b)
Q
,
P
,
R
Q,\,P,\,R
Q
,
P
,
R
c)
R
,
P
,
Q
R,\,P,\,Q
R
,
P
,
Q
d)
P
,
R
,
Q
P,\,R,\,Q
P
,
R
,
Q
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