Find the position vector of a point R which divides the line joining the two points P and Q with position vectors OP=2a→+b→ and a→-2b→respectively in the ratio 1 : 2 internally and externally.

Find the position vector of a point R which divides the line joining the two points P and Q with position vectors $O P$ = $\vec{2 a}$ + $\vec{b}$ and $\vec{a}$ - $\vec{2 b}$ respectively in the ratio 1 : 2 internally and externally.

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.