question 1
a₁x + b₁y + c₁ = 0 and a₂x + b₂y + c₂ = 0, where a₁, b₁, c₁, a₂, b₂, c₂ are all real numbers and a₁²+ b₁² ≠ 0, a₂² + b₂² ≠ 0, is called a *
(a) family of two different straight lines
(b) family of two coincident lines
(c) pair of linear equations in two variables
(d) none of these
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Answer:
(d) none of these
Step-by-step explanation:
(d) none of these
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