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Find the differential equation by eliminating arbitrary constants from the relation x2 + y2 = 2ax

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प्रश्न

Find the differential equation by eliminating arbitrary constants from the relation x2 + y2 = 2ax

योग
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उत्तर

x2 + y2 = 2ax     ......(i)

Here, a is an arbitrary constant.

Differentiating (i) w.r.t. x, we get

`2x + 2y ("d"y)/("d"x)` = 2a

∴ `2x + 2y ("d"y)/("d"x) = (x^2 + y^2)/x`  .....[From (i)]

∴ `2x^2 + 2xy ("d"y)/("d"x)` = x2 + y2

∴ `2xy ("d"y)/("d"x)` = y2 − x2 

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