Mathematics, 13.09.2021 14:00 penacesar18p9jrdh

10) If two lines with equations a¹x + b¹y + c¹ = 0 and a²x + b²y + c² = 0 are parallel then show that a¹b² = a²b¹. plz help me !!

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10) If two lines with equations a¹x + b¹y + c¹ = 0 and a²x + b²y + c² = 0 are parallel then show tha...

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10) If two lines with equations a¹x + b¹y + c¹ = 0 and a²x + b²y + c² = 0 are parallel then show that a¹b² = a²b¹. plz help me !!​

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10) If two lines with equations a¹x + b¹y + c¹ = 0 and a²x + b²y + c² = 0 are parallel then show that a¹b² = a²b¹. plz help me !!