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ABCD is a parallelogram whose adjacent s...

ABCD is a parallelogram whose adjacent sides are represented by he vectors `vec(a)` and `vec(b)`. Three of its vertices are A(1,2,3),B(2,0,5) and D(-1,4,1).

The diagonal `vec(d)=` ___________.

A

`-hat(i)`

B

`-3hat(i)+4hat(j)-4hat(k)`

C

`hat(i)+2hat(j)-hat(k)`

D

`hat(i)`

Text Solution

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The correct Answer is:
B
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