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Question
Solution
`2 hat i - 3 hat j + 4 hat k` and `p hat i + 6 hat j - 8 hat k` are collinear.
∴ The coefficients of `hat i, hat j , hat k` are proportional.
∴ `2/p = (-3)/6`
= `4/(-8)`
`2/p = (-1)/2`
2 × 2 = −p
4 = −p
∴ p = −4
Therefore, the value of p for the vectors to be collinear is −4.
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