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The order and degree of the differential equation dddddd(d3ydx3)2-3d2ydx2+2(dydx)4 = y4 are ______.

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Question

The order and degree of the differential equation `(("d"^3y)/("d"x^3))^2 - 3 ("d"^2y)/("d"x^2) + 2(("d"y)/("d"x))^4` = y4 are ______.

Options

  • 1, 4

  • 3, 4

  • 3, 4

  • 3, 2

MCQ
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Solution

The order and degree of the differential equation `(("d"^3y)/("d"x^3))^2 - 3 ("d"^2y)/("d"x^2) + 2(("d"y)/("d"x))^4` = y4 are 3, 2.

Explanation:

The given differential equation is `(("d"^3y)/("d"x^3))^2 - 3 ("d"^2y)/("d"x^2) + 2(("d"y)/("d"x))^4` = y4 

Here the highest derivative is `("d"^3y)/("d"x^3)`.

∴ The order of the differential equation is 3 and since, the power of the highest order is 2.

∴ Its degree is 2.

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Chapter 9: Differential Equations - Exercise [Page 200]

APPEARS IN

NCERT Exemplar Mathematics Exemplar [English] Class 12
Chapter 9 Differential Equations
Exercise | Q 67 | Page 200

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