Question
Q.15 A solution of differential equation (sec? y) ix + 2x tan y=x ? is (A)2 tan y=c.ex?+x2-1 (B) tan y=ce ** + x2-1 (C) tan y=cen? + x2-1 (D) None of these
Solution 5 (se²y) & + 2x tony = x
Put tanyat
see y dya at
dx
S
if. fexor - et
te - Peter arte
(2x) e 2 dx axt,
te = 1 punt, at, to
tent, -t, te
a tay em x² _ ete to
eter
8-11t cen
Ietary =
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