//data
lambda=1
Zin=150
ZL=300
//formula and result
Zo=sqrt(Zin*ZL)
printf("\nresult:-")
printf("\n(a)d=lambda/4=%.2f m",lambda/4)
printf("\n(b)Zo=sqrt(Zin*ZL)=%.3f ohm",sqrt(Zin*ZL))
printf("\n(c)FL=(ZL-Zo)/(ZL+Zo)=%.4f",(ZL-Zo)/(ZL+Zo))