10. Diagram 10 shows a Cartesian plane drawn on a square grid of sides 1 unit. The vectors a and b are i + j and -i + 2į respectively. Rajah 10 menunjukkan satu satah Cartes yang dilukis pada grid segi empat sama bersisi 1 unit. Vektor a dan vektor b masing-masing ialahi + i dan-i +21. No Diagram 10/Rajah 10 Answer/Jawapan: (a) Express the following vectors in terms of a and b. Ungkapkan vektor berikut dalam sebutan a dan b. (i) OP (ii) PQ [4 marks/4 markah] (b) Determine the unit vector in the direction of QO. Tentukan vektor unit dalam arah QO. [2 marks/2 markah]​

10 Diagram 10 shows a Cartesian plane drawn on a square grid of sides 1 unit The vectors a and b are i j and i 2į respectively Rajah 10 menunjukkan satu satah C class=