CHO HÀM SỐ $ F\LEFT( X \RIGHT) = \SQRT {{X^2} – X} .$ TẬP NGHIỆM S CỦA BẤT PHƯƠNG TRÌNH $ F’\LEFT( X \RIGHT) \LE F\LEFT( X \RIGHT)$ LÀ:
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Level:
Medium
Question Types: Multiple choice
Answers:
- $ S = \\\left( { - \\\infty ;0} \\\right) \\\cup \\\left[ {\\\frac{{2 + \\\sqrt 2 }}{2}; + \\\infty } \\\right)$
- $ S = \\\left( { - \\\infty ;0} \\\right) \\\cup \\\left( {1; + \\\infty } \\\right)$
- $ S = \\\left( { - \\\infty ;\\\frac{{2 - \\\sqrt 2 }}{2}} \\\right] \\\cup \\\left[ {\\\frac{{2 + \\\sqrt 2 }}{2}; + \\\infty } \\\right)$
- $ S = \\\left( { - \\\infty ;\\\frac{{2 - \\\sqrt 2 }}{2}} \\\right] \\\cup \\\left[ {1; + \\\infty } \\\right)$