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Question Number 64350 by Rio Michael last updated on 16/Jul/19

$$Giventhatf\left(x\right)=\left|\begin{array}{ccc}x& x^2& x^3\\ 1& 2x& 3x^2\\ 0& 2& 6x\end{array}\right|,findf{}^{\prime }\left(x\right)$$

Commented by Tony Lin last updated on 17/Jul/19

$$f\left(x\right)=12x^3+2x^3-6x^3-6x^3=2x^3$$$$f^{\prime }\left(x\right)=6x^2$$

Commented by Rio Michael last updated on 17/Jul/19

$$thanks$$

Commented by Prithwish sen last updated on 17/Jul/19

$${\mathrm{f}}^{\prime }\left(\mathrm{x}\right)=\left|\begin{array}{c}12\mathrm{x}{3\mathrm{x}}^2\\ 026\mathrm{x}\end{array}\right|={12\mathrm{x}}^2-{6\mathrm{x}}^2={6\mathrm{x}}^2$$$$006$$

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