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Zepler [3.9K]
3 years ago
14

Find the slope of tangent line at (1,-1.5)

Mathematics
1 answer:
storchak [24]3 years ago
6 0

Answer:

The slope of the tangent m = -0.0833

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the curve

      x y - 2y² + x² = -5 ...(i)

Differentiating equation (i) with respective to 'x', we get

  x(\frac{dy}{dx} )+y (1) -2(2y)\frac{dy}{dx} + 2x=0

    x(\frac{dy}{dx} ) -2(2y)\frac{dy}{dx} = -2x-y

    (x -4y)\frac{dy}{dx} = -2x-y

       \frac{dy}{dx} = \frac{-2x-y}{x-4y}

<u><em>Step(ii):-</em></u>

<u><em>The slope of the tangent</em></u>

<u><em></em></u>(\frac{dy}{dx})_{1,-1.5}  = \frac{-2x-y}{x-4y}<u><em></em></u>

<u><em></em></u>(\frac{dy}{dx})_{1,-1.5}  = \frac{-2(1)-(-1.5)}{1-4(-1.5)}<u><em></em></u>

       m =   \frac{-2+1.5}{1+6}

       m = \frac{-0.5}{6} = -0.083

The slope of the tangent m = -0.0833

<u><em></em></u>

<u><em></em></u>

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