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y_exact=2exp(1/2)-1~2.297
h=0.25,y(0)=1
dy/dx=f(x,y)=y+1
y(0.25)=y(0)+0.25f(y(0),x(0))=1+0.25(1+1)=1.5
y(0.5)=y(0.25)+0.25f(y(0.25),x(0.25))=1.5+0.25(1.5+1))=2.125
h=0.1
y(0.1)=y(0)+0.1f(y(0),x(0))=1+0.1(1+1)=1.2
y(0.2)=y(0.1)+0.1(1.2+1)=1.2+0.22=1.42
y(0.3)=y(0.2)+0.1(1.42+1)=1.42+0.242=1.662
y(0.4)=y(0.3)+0.1(1.662+1)=1.662+0.2662=1.9282
y(0.5)=y(0.4)+0.1(1.9282+1)=1.9282+0.29282=2.22102
Approximating to three decimal places
y(0.5)=2.221 with h=0.1
y(0.5)=2.125 with h=0.25
2.297 being the exact value.
We see a finer grid with h=0.1 gives a value accurate to one decimal place
Please answer all parts to the problem highlighted in yellow (# 3). Thanks! Please show all...
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