Question

Find the value of k for which pair of linear equestions 3x+2y=-5 and x-ky=2 has a unique solution

Answer 1

Answer:

For unique solution of the equations k can have any value except-3/2

Step by step explanation:

3x+2y=-5

x-ky=2

a1=3,b1=2,c1=-5

a2=1,b2=-k,c2=2

For unique solution,

a1/a2≠b1/b2≠c1/c2

so, 3/1≠2/-k

Cross multiplying,

-3k≠2

k≠-3/2

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