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If two lines are parallel then their slopes must be equal.(a) True(b) FalseThis question was posed to me in my homework.My query is from Various Forms of the Equation of a Line in section Straight Lines of Mathematics – Class 11

Answer»

Right choice is (a) True

To EXPLAIN: Let the inclination of the two lines be α and β. SINCE they are parallel so, α = β.

=>TAN α = tan β. Hence their SLOPES are equal.



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