5m Zen
X sqrt xy ))
X sqrt xy )) pictures 5
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X sqrt
X sqrt xy ))
sqrt xyu003d1+x^2y
prove sqrt xy x y )/ 2
sqrt xy )u003d 1 x 2 y
x y )/ 2 sqrt xy
y u0026#39;u003d y /( x sqrt xy ))
ydx x sqrt xy dy 0
x-yu003d sqrt x
x sqrt xy y 1
x sqrt xy )) dy ydx
x sqrt xy dy 0
