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