If 3 x 2-4 y 2-7 xy- then d 2 y - dx 2 at 1-1 isA- 0B- 1C- 1 - 3D- 1 - 2

The correct option is A 0 dy/dx=y/x,d^2y/dx^2=xy^1 y/x^2=0 ...

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Logarithmic Differentiation

If 3 x 2+4 y ...

Question

$If 3 x^{2} + 4 y^{2} = 7 x y, then \frac{d^{2} y}{d x^{2}} at (1, 1) is$

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i f y = T a n^{- 1} (\frac{3 + 2 l o g_{e} x}{1 + 6 l o g_{e} x}) + T a n^{- 1} ⎛ ⎜ ⎝ \frac{l o g_{e} (\frac{e}{x^{2}})}{l o g_{3} (e x^{2})} ⎞ ⎟ ⎠, t h e n \frac{d^{2} y}{d x^{2}} i s

If x =2, y = -1, then the value of $x^{2} + 4 x y + 4 y^{2}$ is

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

y = x^{3}

\frac{d^{2} y}{d x^{2}}

\frac{d^{2} x}{d y^{2}}

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