Find the order and degree of the differential equation d4 ydx4 3-5- 5d3ydx3-6d2ydx2-8dydx-5-0

The correct option is B 4, 3 Given equation is #160; ( d^4 ydx^4 )^3/5 5d^3ydx^3+6d^2ydx^2 8dydx+5=0 Here oredr is 4 and degree is 3 . ...

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Order of a Differential Equation

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Question

Find the order and degree of the differential equation
${(\frac{d^{4} y}{d x^{4}})}^{3 / 5} - 5 \frac{d^{3} y}{d x^{3}} + 6 \frac{d^{2} y}{d x^{2}} - 8 \frac{d y}{d x} + 5 = 0$

4, 3

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3, 4

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4, 5

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5, 4

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\frac{d^{4} y}{d x^{4}} + s i n (\frac{d^{3} y}{d x^{3}}) = 0

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(ii)

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\frac{d^{2} y}{d x^{2}} + 5 x {(\frac{d y}{d x})}^{2} - 6 y = log x

{(\frac{d y}{d x})}^{3} - 4 {(\frac{d y}{d x})}^{2} + 7 y = sin x

\frac{d^{4} y}{d x^{4}} - sin (\frac{d^{3} y}{d x^{3}}) = 0

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{(1 + 3 \frac{d y}{d x})}^{\frac{2}{3}} = 4 (\frac{d^{3} y}{d x^{3}})

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