Question: 1 . 1 I f a = 2 i + 3 j + 4 k and b = i - j + k , Find

1.1Ifa=2i+3j+4k and b=i-j+k,
Find
(i)ab
(ii) Sine of the angle between these vectors.
(iii) Unit vector perpendicular to each vector.
1.2 Find the area of the parallelogram with adjacent sides, a=i-j+k,
and b=2j-3k
1 . 1 I f a = 2 i + 3 j + 4 k and b = i - j + k ,

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