MỘT NGUYÊN HÀM CỦA HÀM SỐ $ F(X) = X\SQRT {1 + {X^2}}$ LÀ:
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Level:
Medium
Question Types: Multiple choice
Answers:
- $ F(x) = \\\frac{1}{3}{\\\left( {\\\sqrt {1 + {x^2}} } \\\right)^3}$.
- $ F(x) = \\\frac{1}{2}{\\\left( {\\\sqrt {1 + {x^2}} } \\\right)^2}$.
- $ F(x) = \\\frac{1}{3}{\\\left( {\\\sqrt {1 + {x^2}} } \\\right)^2}$.
- $ F(x) = \\\frac{{{x^2}}}{2}{\\\left( {\\\sqrt {1 + {x^2}} } \\\right)^2}$.