The ellipse $\frac{{{x^2}}}{{{a^2}}} + \frac{{{y^2}}}{{{b^2}}} = 1$ and the straight line $y = mx + c$ intersect in real points only if
The ellipse $\frac{{{x^2}}}{{{a^2}}} + \frac{{{y^2}}}{{{b^2}}} = 1$ and the straight line $y = mx + c$ intersect in real points only if
- A
${a^2}{m^2} < {c^2} - {b^2}$
- B
${a^2}{m^2} > {c^2} - {b^2}$
- C
${a^2}{m^2} \ge {c^2} - {b^2}$
- D
$c \ge b$
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