© examsiri.com
Question : 116 of 150
Marks:
+1,
-0
Solution:
= .......(i)
Put
y=vx⇒=v+x From Eq. (i)
v+x== = ⇒x=−v= = ⇒x= ⇒dv=− On integration both sides
⇒∫dv=−∫ ⇒∫dv+∫dv=−∫ ⇒−+log‌v=−log‌x−log‌c′ ⇒+log‌=−log‌x−log‌c′ ⇒−x22y2+log‌+log‌x=−log‌c′ ⇒+log(.x)=−log‌c′ {∵log‌m+log‌n=log‌m‌n} ⇒log‌y+log‌c′=⇒log(y.c′) = ⇒yc′=ex2∕2y2⇒y2c′2=ex2∕y2 ⇒y2c=ex2∕y2 [ Let
c′2=c]
© examsiri.com
Go to Question: