A)e−4
B)e−2
C)e−1
D)1
E)e
dydx=2yex isedy2y=dxex integral alalım,∫dy2y=∫dxexlny2=−e−x+Cy=e(−2e−x+C)y(0)=1=e(−2+C)C=2y=e(−2e−x+2)y(−ln2)=e−2 gelir.