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Question

Solve: ∣ ∣3x+4x+22x+34x+52x+33x+410x+173x+55x+8∣ ∣=0. The value of the determinant at x=1is:

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Solution

∣ ∣3x+4x+22x+34x+52x+33x+410x+173x+55x+8∣ ∣=0
at x=1∣ ∣111111723∣ ∣
R2R2R1=∣ ∣111000723∣ ∣
So,determinant is 0

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