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The sum of values of ‘k’ for which the linear equations possess a non-zero solution is
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a
2
b
5
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6
d
1
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Correct option is C
The system of equations has a non–zero solution⇒Δ=0⇒4k2k41221=0 ⇒44-2-kk-2+22k-8=0 ⇒k2−6k+8=0⇒k=2,4∴ Sum = 4+2 = 6Similar Questions
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