Friday, 20 August 2021

If two real numbers x and y satisfy (x+5)2+(y−10)2=196, then the minimum possible value of x2+2x+y2−4y is
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Define f:R→R by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...