Hello please may i know why is this exact since dm/dy in not equals dn/dx
9) dy_2+1 dx y1 First, we rewrite this equation as Step 1: -[x + 1-0; the equation is exact. Step 2: +1; =y+1. Step 3: F(x, y)( 1) dr C()+z +C() Step 4: F(z, y)-/ (y + 1) dy-C(z) =-y2 + y + C(z) Step 5: F(x, y) 12+x-C(y)=1y2 + y + C(z) Step 6: F(x, y) =-(r' + r) + x + y. (x2 + y2) + x + y = K.
Show transcribed image text 9) dy_2+1 dx y1 First, we rewrite this equation as Step 1: -[x + 1-0; the equation is exact. Step 2: +1; =y+1. Step 3: F(x, y)( 1) dr C()+z +C() Step 4: F(z, y)-/ (y + 1) dy-C(z) =-y2 + y + C(z) Step 5: F(x, y) 12+x-C(y)=1y2 + y + C(z) Step 6: F(x, y) =-(r' + r) + x + y. (x2 + y2) + x + y = K.