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If a, b, c are in AP, then determinant ∣∣∣∣x+2x+3x+2ax+3x+4x+2bx+4x+5x+2c∣∣∣∣ is a) zero b) 1 c) x c) 2x |
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Answer» If a, b, c are in AP, then determinant ∣∣ |
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