MCQ
The solution of the differential equation `dy/dx + y/x = 1 - x^3 + 4x` is ______
- A`xy = x^3/3 + x^2 + x + c`
- ✓`xy = x^2/2 - x^5/5 + 4 x^3/3 + c`
- C`xy = x^3/3 + 3/2 x^2 + 2x + c`
- D`xy = x^2/2 + x^5/5 + 4 x^3/3 + c`
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(T = surface tension of water, g = gravitational acceleration)
$\begin{array}{cc}
\phantom{..........}\ce{Br}\phantom{...........}\ce{CH3}\\
\phantom{.......}|\phantom{.............}|\\
\ce{CH3 - CH - CH - CH2 - C - CH3}\\
|\phantom{...................}|\\
\phantom{...}\ce{C2H5}\phantom{...............}\ce{C2H5}\end{array}$
X and Z are ____________ respectively.