જો $f(x, y) = \frac{\cos(x - 4y)}{\cos(x + 4y)}$ હોય, તો $\left. \frac{\partial f}{\partial x} \right|_{y = \frac{x}{4}}$ ની કિંમત શોધો:

  • A
    -$1$
  • B
    $0$
  • C
    $1$
  • D
    $2$

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Similar Questions

જો $z = \frac{(x^4 + y^4)^{1/3}}{(x^3 + y^3)^{1/4}}$ હોય,તો $x\frac{\partial z}{\partial x} + y\frac{\partial z}{\partial y} = $

જો $z = y + f(v)$,જ્યાં $v = \frac{x}{y}$ હોય,તો $v \frac{\partial z}{\partial x} + \frac{\partial z}{\partial y}$ ની કિંમત શું થાય?

Difficult
View Solution

$\begin{aligned} & f(x, y)=2(x-y)^2-x^4-y^4 \\ & \left|\left(f_{x x} f_{y y}-f_{x y}^2\right)\right|_{(0,0)} \end{aligned}$

જો $u = \sin^{-1}\left(\frac{y}{x}\right)$ હોય,તો $\frac{\partial u}{\partial x}$ ની કિંમત શું થાય?

જો $z = \sec^{-1}\left(\frac{x^4+y^4-8x^2y^2}{x^2+y^2}\right)$ હોય, તો $x \frac{\partial z}{\partial x} + y \frac{\partial z}{\partial y}$ ની કિંમત શોધો.

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