GATE (TF) Textile 2015 Question Paper Solution | GATE/2015/TF/37

Question 37 (Textile Engineering & Fibre Science)

Out of the following, the exact differential equation is

(A)-ydx+xdy=0
(B)ydx+xdy=0
(C)ydx-xdy=0
(D)dx+xdy=0
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