Figure 4.1 shows the orientation of two vectors u and v in the XY plane.
If u = \(a\widehat i + b\widehat j\) and
v = \(p\widehat i + q\widehat j\)
which of the following is correct?
1
a and p are positive while b and q are negative.
2
a, p and b are positive while q is negative.
3
a, q and b are positive while p is negative.
4
a, b, p and q are all positive.