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JEE Main 2011Medium

Q.The equation of the line passing through (1,2,3) and parallel to the planes x - y + 2z = 5 and 3x + y + z = 6 is

a
r=(i^+2j^+3k^)+λ(i^+j^+k^)\vec{r} = (\hat{i} + 2\hat{j} + 3\hat{k}) + \lambda (-\hat{i} + \hat{j} + \hat{k})
b
r=(i^+2j^+3k^)+λ(i^j^+k^)\vec{r} = (\hat{i} + 2\hat{j} + 3\hat{k}) + \lambda (\hat{i} - \hat{j} + \hat{k})
c
r=(i^+2j^+3k^)+λ(i^+j^k^)\vec{r} = (\hat{i} + 2\hat{j} + 3\hat{k}) + \lambda (\hat{i} + \hat{j} - \hat{k})
d
r=(i^+2j^+3k^)+λ(i^j^+k^)\vec{r} = (\hat{i} + 2\hat{j} + 3\hat{k}) + \lambda (-\hat{i} - \hat{j} + \hat{k})

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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