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Kapila is trying to find the general sol...

Kapila is trying to find the general solution of the following differential equations.
(i) `xe^(x/y) dx - ye^((3x)/y) dy = 0`
(ii) `(2x + 1) (dy)/(dx) = 3 - 2y` (iii) `(dy)/(dx) = sin x - cos y`
Which of the above become variable separable by substituting `y=b.x`,where b is a variable?

A

only (i)

B

only (i) and (ii)

C

all - (i), (ii) and (iii)

D

None of the above

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