NCERT Exercise 4.2 Q4 - Determinants

Question: Using determinants, find the equation of the line joining (i) (1,2) and (3,6); (ii) (3,1) and (9,3).

Answer: (i) y=2x; (ii) x-3y=0.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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