Write the quadratic Q = x1x2 + 4x1x3 – 12x2x3 + 9x2x4 + 5x – 18x3X4 + x? in quadratic form x² A x , with A symmetric.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Write the quadratic
Q = x1x2 + 4x1X3 – 12x2x3 + 9x2x4 + 5x? – 18x3x4 + xỉ
in quadratic form x" A x , with A symmetric.
Transcribed Image Text:Write the quadratic Q = x1x2 + 4x1X3 – 12x2x3 + 9x2x4 + 5x? – 18x3x4 + xỉ in quadratic form x" A x , with A symmetric.
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