1. Tardigrade
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  4. The function f(x)=x2-2 x is strictly decreasing in the interval

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Q. The function $f(x)=x^{2}-2 x$ is strictly decreasing in the interval

KCETKCET 2021Application of Derivatives

Solution:

$f '( x )<0 ; 2( x -1)<0$
$x <1 ; x \in(-\infty, 1)$