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If vectors vec(A) and vec(B) are 3hat(i)...

If vectors `vec(A)` and `vec(B)` are `3hat(i) - 4hat(j) + 5hat(k)` and `2hat(i) + 3hat(j) - 4hat(k)` respectively find the unit vector parallel to `vec(A) + vec(B)`.

A

`((5i - j + k))/(sqrt(27))`

B

`((5i + j + k))/(sqrt(27))`

C

`((5i+j+k))/(27)`

D

`((5i-j-k))/(27)`

Text Solution

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The correct Answer is:
A
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