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If bar(PR)=2hat(i)+hat(j)+hat(k),bar(QS)...

If `bar(PR)=2hat(i)+hat(j)+hat(k),bar(QS)=hat(i)+3hat(j)+2hat(k),` then the area of the quadrilateral PQRS is

A

`(5sqrt(3))/(2)`

B

`(1)/(2)|bar(PR)xxbar(QS)|`

C

`(1)/(2)(bar(PR)xxbar(QS))`

D

`(1)/(2)|{:(hat(i),hat(j),hat(k)),(2,1,1),(-1,3,2):}|`

Text Solution

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The correct Answer is:
A, B
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