(u/v)'=(u'v-uv')/v²
(хⁿ)'=nxⁿ⁻¹;
(const)'=0
y'=-(2x*x-(x²+121)*1)/x²=(-2x²+x²+121)/x²=(121-x²)/x²
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(u/v)'=(u'v-uv')/v²
(хⁿ)'=nxⁿ⁻¹;
(const)'=0
y'=-(2x*x-(x²+121)*1)/x²=(-2x²+x²+121)/x²=(121-x²)/x²