$$(-5,7)\xi(-1,3)$$
$7,41$
$$\frac{\mathrm{d}}{\mathrm{d}\xi }(7,41\xi )$$
$$7,41\xi ^{1-1}$$
$$7,41\xi ^{0}$$
$$7,41\times 1$$
$$7,41$$
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$\frac{741\xi }{100}$
$$7,41\xi $$