The figure shows the orientation of two vectors u and v in the XY plane.
If u=a^i+b^j and v=p^i+q^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. |
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