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Question
Choose the correct answer.
If a, b, c, are in A.P., then the determinant
`|(x+2, x+3,x +2a),(x+3,x+4,x+2b),(x+4,x+5,x+2c)|`
A. 0
B. 1
C. x
D. 2x
Solution
Answer: A
Here, all the elements of the first row (R1) are zero.
Hence, we have Δ = 0.
The correct answer is A.
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