Solution of different equation dy/dx = - y is _____?
- x = Ce⁻ˣ
- y = C⁻ˣe
- y = Ce⁻ˣ
- None of these
Explanation
The equation is separable:
dy/dx = –y
⇒ dy/y = –dx
⇒ ∫(1/y) dy = ∫(–1) dx
⇒ ln|y| = –x + C
⇒ y = Ce⁻ˣ (where C is the constant of integration)
Related MCQs
- 40
- 45
- 50
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 8x + 5 = 0
- 8(x + 5) = x
- 8x = x + 5
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- (x+5)(x−4)/(x−2)(x+2)
- x+5/x+2
- x−4/x−2
- x+5/x−2
اس سوال کو وضاحت کے ساتھ پڑھیں
- 20
- 25
- 30
- 35