[填空题]
The complex numbers z and w correspond to the pointskdb w3p .pd qi/wt9:g1 A and B as shown on the dia twdpip/:b dgq.91wk3 3rf o g.h(tu-zu ;hmgq3+umw8ivy2z)gram below.
-zy3mm w 3ofgu u8t.zg2i)uh;vhrq +( 1.Find the exact value of ∣z−w∣.
∣z−w∣=x$\sqrt{y-\sqrt{z}}$; x= , y= , z= .
2.1.Find the exact perimeter of triangle AOB.
perimeter=x+∣z−w∣; x= .
2.2.Find the exact area of triangle AOB.
area=$\frac{x}{y}$ ; x= , y= .