If the points and are on opposite sides of the line

MATHEMATICS · Single correct · CBSE · Mathematics · Linear Inequalities · Linear Inequalities

Problem

If the points (1,2)(1,2) and (3,4)(3,4) are on opposite sides of the line 3x−5y+a=03x-5y+a=0, then (1) 7<a<117<a<11 (2) a=7a=7 (3) a=11a=11 (4) a<7a<7 or a>11a>11

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