Question:medium
If \( \begin{vmatrix} x & 2 & x 2 & x & 6 x & x & 6 \end{vmatrix} = ax^4 + bx^3 + cx^2 + dx + e \), then \( 5a+4b+3c+2d+e \) is equal to
If \( \begin{vmatrix} x & 2 & x 2 & x & 6 x & x & 6 \end{vmatrix} = ax^4 + bx^3 + cx^2 + dx + e \), then \( 5a+4b+3c+2d+e \) is equal to
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For polynomial coefficients sum, substituting \(x=1\) avoids long expansions.
Updated On: May 1, 2026
- \( 11 \)
- \( -11 \)
- \( 12 \)
- \( -12 \)
- \( 13 \)
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The Correct Option is B
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