Question
If $\big[3\vec{\text{a}}+7\vec{\text{b}}\vec{\text{c}}\vec{\text{d}}\big]=\lambda\big[\vec{\text{a}}\vec{\text{c}}\vec{\text{d}}\big]+\mu\big[\vec{\text{b}}\vec{\text{c}}\vec{\text{d}}\big],$ then find the value of $\lambda+\mu.$
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$\text{x}_\text{i}$
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$0$
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$1$
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$2$
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$3$
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$4$
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$5$
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$\text{p}_\text{i}$
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$\frac{1}{6}$
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$\frac{5}{18}$
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$\frac{2}{9}$
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$\frac{1}{6}$
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$\frac{1}{9}$
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$\frac{1}{18}$
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