Two vectors P = 2hat{i} + bhat{j} + 2hat{k} a | vedclass

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(C) Two vectors $P = A_1\hat{i} + B_1\hat{j} + C_1\hat{k}$ and $Q = A_2\hat{i} + B_2\hat{j} + C_2\hat{k}$ are parallel if their components are proport

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$2$

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(C) Two vectors $P = A_1\hat{i} + B_1\hat{j} + C_1\hat{k}$ and $Q = A_2\hat{i} + B_2\hat{j} + C_2\hat{k}$ are parallel if their components are proportional,i.e.,$\frac{A_1}{A_2} = \frac{B_1}{B_2} = \frac{C_1}{C_2}$.Given $P = 2\hat{i} + b\hat{j} + 2\hat{k}$ and $Q = 1\hat{i} + 1\hat{j} + 1\hat{k}$.Comparing the components,we get $\frac{2}{1} = \frac{b}{1} = \frac{2}{1}$.From the middle term,we find $b = 2$.

Two vectors $P = 2\hat{i} + b\hat{j} + 2\hat{k}$ and $Q = \hat{i} + \hat{j} + \hat{k}$ will be parallel if $b=$ ........

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