Consider points ,

MATHEMATICS · Single correct · A Level · Mathematics · Vectors · Vectors

Problem

Consider points

A

B

C

and

D

with position vectors

7\hat{i} - 4\hat{j} + 7\hat{k}

\hat{i} - 6\hat{j} + 10\hat{k}

-\hat{i} - 3\hat{j} + 4\hat{k}

and

5\hat{i} - \hat{j} + 5\hat{k}

, respectively. Then,

ABCD

is a (1) square (2) rhombus (3) rectangle (4) None of these