conic-section

Question: If $x=my+c$ is a normal to the parabola ${{x}^{2}}=4ay$ , then the value of c is

1) $-2am-a{{m}^{3}}$

2) $2am+a{{m}^{3}}$

3) $-\frac{2a}{m}-\frac{a}{{{m}^{3}}}$

4) $\frac{2a}{m}+\frac{a}{{{m}^{3}}}$

Solution:

Explanation: No Explanation

Parabola

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