Question

the angle of intersection between the curves y^2+x^2=a^2√2 and x^2-y^2=a^2 is ​

Answer 1

Answer:

ANSWER

xy=a2 and x2−y2=a2

⇒xdxdy+y=0 and 2x−2ydxdy=0

⇒dxdy=−xy and dxdy=yx

∴(dxdy)1=−xy and (dxdy)2=yx

⇒(dxdy)1×(dxdy)2=−xy×y