Show that the four points A, B, C and D with position vectors a,→b,→c→ and d→ respectively are coplanar if and only if 3a→-2b→+c→-2d→=0→.

Show that the four points A, B, C and D with position vectors $\vec{a,} \vec{b,} \vec{c} a n d \vec{d}$ respectively are coplanar if and only if $3 \vec{a} - 2 \vec{b} + \vec{c} - 2 \vec{d} = \vec{0}$ .

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.