Value of k for which the given system of equations has a unique solution:
x – ky = 2; 3x + 2y = -5
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4 i think wrong
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x - ky - 2 = 0
3x + 2y + 5 = 0
If these equations has unique solution then,
a1 / a2 ≠ b1 / b2
a1 = 1 , b1 = - k , c1 = -2
a2 = 3 , b2 = 2 , c2 = 5
a1 / a2 = b1 / b2 = c1/c2
1/3 = -k/2 = -2/5
- k = 2/3
k = -2/3
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