**Q.No.2.3: - Vector A lies in the xy-plane. For what orientation will both of its rectangular components be negative? For what orientation will its components have opposite signs?**

**Ans: -**In 1

^{st}quadrant x and y are both +ve. In 2

^{nd}x is –ve and y is +ve. In 3

^{rd}both x and y are

–ve. In 4

^{th}quadrant x is +ve and y is –ve. By using this consideration we can say that when vector**A**lies in 1

^{st}quadrant then both of its rectangular components will have same +ve signs when the vector

**A**lies in 2

^{nd}quadrant then x component is –ve but y will be +ve. When

**A**lies is 3

^{rd}quadrant then both components will have same negative signs and in the 4

^{th}quadrant the x and y will have opposite signs means x is +ve and y is –ve

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