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Question

For what values of k does the pair of equations x2y=3,3x+ky=1 have a unique solution? [ 2 MARKS]

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Solution

Concept : 1 Mark
Application : 1 Mark

Given equations are,

x2y=3x2y3=0(i)

a1=1,b1=2,c1=3

3x+ky=13x+ky1=0(ii)

a2=3,b2=k,c2=1

For pair of equations to have unique solution,

a1a2b1b2

132k

k6

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