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Question

Using the property of determinants and without expanding.
∣ ∣xax+ayby+bzcz+c∣ ∣=0

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Solution

Let A=∣ ∣xax+ayby+bzcz+c∣ ∣
Applying C3C3C1, we get A=∣ ∣xaaybbzcc∣ ∣=0
[Since, the two columns (C2=C3) of the determinants are identical]


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