3x + 4y - 20 = 0 ;5x - ky + 14 = 0 find the value of k when equation has a unique solution.
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Answer:
k can have any value except -20/3
Step-by-step explanation:
For unique solution
a1/a2 ≠ b1/b2
3/5 ≠ 4/-k
k ≠ -20/3
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