AP and TS EAMCET Engineering Model Paper 15

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Question : 80 of 160

Marks: +1, -0

The solution of xdy+ydx=a2

(xdy−ydx)

x2+y2

xy=a2tan−1(
y
x
)+c
xy=a2tan−1(
x
y
)+c
xy=a2sin−1(
y
x
)+c
xy=a2sec−1(
y
x
)+c

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