The differential equation of all Coaxial parabolas y - 4a (x-b), where a and bare arbitrary constants.is d'y dy (A) dx 130118116771 V dx

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( cos y^{2}=4 a(x-b) ) ( 2 y y^{prime}=4 a ) ( therefore a=frac{y y}{2} ) ( 2left[y^{2}+y y^{prime prime}=0right. ) ( 8 y^{prime 2}+y y^{prime prime}=0 )

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