I Applications'-' + "
o Permutation and combination
Calculate nPr and nCr for (n =- 10: r =- 4) and (n == 25: r 9 5l.
[m-——"" nCr=
"I"
]
Programming:
lo)
(a 110 @ETE
"LRN" displayed
(Value of It)
(Value of r)
@EEBEEDEB vvvvv 5040 (Permutation)
('23 130m?
(Value of I!)
(Value of r)
(BEBEBBEEBEGJBB
a ..................
0 (Combination)
Operation:
3
El 25 a 5
-------------------------- 6375600 (Permutation)
@
a 6 a oooooooooooooooooooooooooooooo
0 Calculate the area of a triangle when the lengths of the three sides are given.
's=a+b+c
'
a
c
2
'
\SnJfls—o} (s-b) {s-c)'
b
How large isS whena =18, b = 22 and c =31?
How large is S when a a 9.7. b a 13.4 and c = 6.5?
Programming:
@(fil
(51186322E6131IE
"LRN" displayed. 36
BE
'
'
BBEBEEDBBBEEEBE
DBBEBB¥ -------------- 1942702692 (Area 5')
Operation:
@EJ
[53951781304685 ............ 29.61549594lAreaSl
-34-