Câu hỏi trắc nghiệm (10 câu):
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- A. \(\frac{{{x^2}}}{{100}} + \frac{{{y^2}}}{{81}} = 1.\)
- B. \(\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{{25}} = 1.\)
- C. \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{9} = 1.\)
- D. \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{{16}} = 1.\)
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- A. 0
- B. 1
- C. 2
- D. 3
-
- A. \(\frac{4}{5}\)
- B. \(\frac{5}{4}\)
- C. \(\frac{5}{3}\)
- D. \(\frac{3}{5}\)
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- A. 3
- B. 6
- C. \(\frac{9}{{16}}\).
- D. \(\frac{6}{7}\).
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- A. \(\frac{{{x^2}}}{{144}} + \frac{{{y^2}}}{{36}} = 1\)
- B. \(\frac{{{x^2}}}{9} + \frac{{{y^2}}}{{36}} = 1\)
- C. \(\frac{{{x^2}}}{{36}} + \frac{{{y^2}}}{9} = 1\)
- D. \(\frac{{{x^2}}}{{144}} + \frac{{{y^2}}}{{36}} = 0\)
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- A. \(\frac{{{x^2}}}{{36}} + \frac{{{y^2}}}{{16}} = 1\)
- B. \(\frac{{{x^2}}}{{144}} + \frac{{{y^2}}}{{64}} = 1\)
- C. \(\frac{{{x^2}}}{{12}} + \frac{{{y^2}}}{8} = 1\)
- D. \(\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{{36}} = 1\)
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- A. \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{{16}} = 1\)
- B. \(\frac{{{x^2}}}{5} + \frac{{{y^2}}}{4} = 1\)
- C. \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{9} = 1\)
- D. \(\frac{x}{5} + \frac{y}{4} = 1\)
-
- A. một điểm
- B. hai điểm
- C. ba điểm
- D. bốn điểm
-
- A. \(\frac{1}{2}\)
- B. -2
- C. 2
- D. -1
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- A. \(\frac{{{x^2}}}{4} + \frac{{{y^2}}}{3} = 1\)
- B. \(\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{{15}} = 1\)
- C. \(\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{9} = 0\)
- D. \(\frac{{{x^2}}}{9} + \frac{{{y^2}}}{8} = 1\)
