The order and degree of the differential equation - -dy-dx- - 4 nbsp-d-2y-dx-2 - 7x - 0- nbsp-are a and b- then a - b is-3456

The correct option is C 5 √( dy dx #160;) 4 d^ 2 y dx^ 2 7x = 0⇒√( dy dx #160;) =7x+4 d^ 2 y dx^ 2 ⇒ dy dx =( 7x+4 d^ 2 y d ...

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Chain Rule of Differentiation

The order and...

Question

The order and degree of the differential equation $\sqrt[3]{\frac{d y}{d x}} - 4 \frac{d^{2} y}{d x^{2}} - 7 x = 0$ are a and b, then a + b is:

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\sqrt{\frac{d y}{d x}} - 4 \frac{d y}{d x} - 7 x = 0

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

m

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{(\frac{d^{2} y}{d x^{2}})}^{5} + 4 \frac{{(\frac{d^{2} y}{d x^{2}})}^{3}}{(\frac{d^{2} y}{d x^{2}})} + \frac{d^{2} y}{d x^{2}} = x^{2} - 1

\frac{d^{2} y}{d x^{2}} = {[1 + {(\frac{d y}{d x})}^{2}]}^{3 / 2}

{(\frac{d y}{d x})}^{2} + \frac{d y}{d x} - {sin}^{2} y = 0

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