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प्रश्न
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 ______.
पर्याय
family of two different straight lines
family of two coincident lines
pair of linear equations in two variables
none of these
MCQ
रिकाम्या जागा भरा
उत्तर
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 pair of linear equations in two variables.
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