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If [2a + 4b c d] = λ[a c d] + μ[b c d] then  λ + μ = 

A. 6

B. –6

C. 10

D. 8

1 Answer

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Best answer

Correct option is A. 6

Now, comparing the coefficient of lhs and rhs we get, λ = 2 and μ = 4

∴ λ + μ = 2 + 4

= 6

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