Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1.
’…
2.
‹â
3.
â
4.
d
ƒŒƒxƒ‹3.
•ÏX
SDAL“‡‰pŒêŠwZ