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For vec(a)=hat(i)+hat(j)-2hat(k), vec(b)...

For `vec(a)=hat(i)+hat(j)-2hat(k), vec(b)=-hat(i)+2hat(j)+hat(k)` and `vec(c)=hat(i)-2hat(j)+2hat(k)`, then find the unit vector parallal to `vec(a)+vec(b)+vec(c)` is ...................... .

A

`(hat(i)+hat(j)-hat(k))/(sqrt(3))`

B

`(hat(i)+hat(j)+hat(k))/(sqrt(3))`

C

`(hat(i)+hat(j)+hat(k))/(3)`

D

`(hat(i)-hat(j)+hat(k))/(sqrt(6))`

Text Solution

Verified by Experts

The correct Answer is:
B
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