Question
Question: The solution of the equation \(\frac { d y } { d x } + \sqrt { \frac { 1 - y ^ { 2 } } { 1 - x ^ { 2...
The solution of the equation dxdy+1−x21−y2=0 is
A
x1−y2−y1−x2=c
B
x1−y2+y1−x2=c
C
x1+y2+y1+x2=c
D
None of these
Answer
x1−y2+y1−x2=c
Explanation
Solution
dxdy+1−x21−y2=0 ⇒ ∫1−y2dy=−∫1−x2dx
⇒ sin−1y=−sin−1x+sin−1c
⇒ sin−1[x1−y2+y1−x2]=sin−1c
⇒ x1−y2+y1−x2=c.