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1)

Let  a,λ,μϵR . Consider the system of linear equation ax+2y=λ and 3x-2y= μ . Which of the following statement(s) is (are ) correct?


A) If a=-3, then the system has infinitely many solutions for all values of λ and μ

B) a3, then the system has a unique solution for all values λ and μ

C) If λ+μ=0, then the system has infinitely many solutions for a=-3

D) If λ+μ0 then the system has no solution a=-3

Answer:

Option B,C,D

Explanation:

Here, ax+2y=λ

and 3x-2y=μ

For a=-3 , above equations will be parallel  or coincident, ie, parallel for λ+μ0 and coincident. If λ+μ=0 and if a≠ -3, equations are intersecting , i.e, unique solution