Question 2 (i) Do the following equations represent a pair of coincident lines? Justify your answer. 3x+17y=3and7x+3y=7
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Solution
a1a2=b1b2=c1c2 No, given pair of linear equations 3x+y7−3=0 and 7x + 3y – 7 = 0 wherea1=3,b1=17,c1=−3a2=7,b2=3,c2=−7now,a1a2=37,b1b2=121,c1c2=37 hence, the given pair linear equations has unique solution