Question

помогите....................​

Answer 1

$1)\; \; (x-1)(x-2)<0 \; \; \; +++(1)---(2)+++\\\\x\in (1,2)\\\\2)\; \; 0,5x^2-2x-6\geq 0\; \; pri \; \; x\in (-\infty ,-2\, ]\cup [\, 6,+\infty )$