Questions: cot(y) = 3x - 8y dy/dx = □

cot(y) = 3x - 8y
dy/dx = □
Transcript text: \[ \begin{array}{r} \cot (y)=3 x-8 y \\ \frac{d y}{d x}=\square \end{array} \]
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Solution

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Solution Steps

To find dydx\frac{dy}{dx}, we need to differentiate both sides of the equation with respect to xx. This involves using implicit differentiation. The derivative of cot(y)\cot(y) with respect to xx will involve the chain rule, and the derivative of the right side is straightforward.

Step 1: Differentiate the Equation

To find dydx\frac{dy}{dx}, we start by differentiating both sides of the equation cot(y)=3x8y\cot(y) = 3x - 8y with respect to xx.

Step 2: Apply Implicit Differentiation

Using implicit differentiation, the derivative of cot(y)\cot(y) with respect to xx is csc2(y)dydx-\csc^2(y) \cdot \frac{dy}{dx} due to the chain rule. The derivative of 3x8y3x - 8y with respect to xx is 38dydx3 - 8\frac{dy}{dx}.

Step 3: Solve for dydx\frac{dy}{dx}

Set the derivatives equal to each other: csc2(y)dydx=38dydx -\csc^2(y) \cdot \frac{dy}{dx} = 3 - 8\frac{dy}{dx}

Rearrange the equation to solve for dydx\frac{dy}{dx}: csc2(y)dydx+8dydx=3 -\csc^2(y) \cdot \frac{dy}{dx} + 8\frac{dy}{dx} = 3

Factor out dydx\frac{dy}{dx}: dydx(csc2(y)+8)=3 \frac{dy}{dx}(-\csc^2(y) + 8) = 3

Solve for dydx\frac{dy}{dx}: dydx=38csc2(y) \frac{dy}{dx} = \frac{3}{8 - \csc^2(y)}

Given the output, csc2(y)\csc^2(y) simplifies such that the equation becomes: dydx=3 \frac{dy}{dx} = -3

Final Answer

dydx=38csc2(y)\boxed{\frac{dy}{dx} = \frac{3}{8 - \csc^2(y)}}

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