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) a≠−3, 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+μ≠0 then the system has no solution a=-3 Answer: Option B,C,DExplanation:Here, ax+2y=λ and 3x-2y=μ For a=-3 , above equations will be parallel or coincident, ie, parallel for λ+μ≠0 and coincident. If λ+μ=0 and if a≠ -3, equations are intersecting , i.e, unique solution