हिंदी

The solution of the equation dy/dx = (3x − 4y − 2)/(3x − 4y − 3) is ______.

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प्रश्न

The solution of the equation `dy/dx = (3x − 4y − 2)/(3x − 4y − 3)` is ______.

विकल्प

  • (x − y2) + c = log (3x − 4y + 1)

  • x − y + c = log (3x − 4y + 4)

  • (x − y + c) = log (3x − 4y − 3)

  • x − y + c = log (3x − 4y + 1)

MCQ
रिक्त स्थान भरें
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उत्तर

The solution of the equation `dy/dx = (3x − 4y − 2)/(3x − 4y − 3)` is x − y + c = log (3x − 4y + 1).

Explanation:

Hint: Put 3x − 4y = X

⇒ `3 − 4  dy/dx = (dX)/dx ⇒ dy/dx = 1/4(3 − (dX)/dx)`

⇒ `3/4 − 1/4 (dX)/dx = (X − 2)/(X − 3)`

⇒ `−1/4 (dX)/dx = (4X − 8 − 3(X − 3))/(4(x − 3))`

⇒ `−1/4 (dX)/dx`

⇒ `(X + 1)/(4 (X − 3))`

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