Matematicas
(
x 2 x3 3 x5 x15 ) = ( 5 )3 = 15 yy 4 y y
3 xy 3 34 x 4 y12 81x 4 y12 = = 2 24 z 8 16 z 8 2z
4
^
2 3
5
19 19 7 −2 c6 = 2 = c 6 = c6 c
c 2 c5
3
c6
=c3c2
6
c3
4 3 9 a − ab ( ab3 )−2
a 2 − 3 ab9 = a −2 b −6 =
−2
(
)
−2
=
(a −
2
1
a 2b 6
3
ab9
)
2
a 2b 6
9 3 3 a 4 − 2a 2 a b 3 + a b 3 a 2b 6
1
2
=
a 4 − 2a 3 b3 + a 3 b 6
7
2
1 − (1 + 0.60) −5 = 1.5077 0.60
(1 + i )12 = (1 + 0.30)2 (1 + i )12 = 1.69 1 + i = 12 1.69 i = 1.04469 − 1 i = 0.04469
(128.35) 2 (25.12)
− 1 3
= 48252.806 = 219.665
27 3 97 = 53.9301 4 28
>
log 3 (27) = L L=3
log 5 (0.008) = L L = −3 5 = 0.008
−3
log8 64 = L log8 8 = L L =1
1 )=L100 1 log10 ( ) = L 10 L = −1 log10 (
log 2 44 = L log 2 16 = L L=4
E
log 2 N = 3 N = 23 = 8
log 5 N = 3 N = 53 = 125
log 4 N =
1 2
1 2
N =4 =2
log 6 N = 5 N = 65 = 7776Z
log10 N = 2 N = 102 = 100
(1.60)− n = 0.100 log10 (1.60) − n = log10 (0.100) −n log10 (1.60) = log10 (0.100) −n = log10 (0.100) log10 (1.60)
(1 + 0.18)n − 1 = 0.35 (1 + 0.18)n = 1 + 0.35(1 + 0.18)n = 1.35 n log10 (1.18) = log10 (1.35) n= log10 (1.35) log10 (1.18)
n = −(−0.4.8990) n = 0.4.8990
n = 1.8131
1 − (1 + 0.04)− n = 0.285 1 − 0.285 = (1.04)− n 0.715 = (1.04) − n log100.715 = log10 (1.04) − n −n = log10 0.715 log10 (1.04)
n = −(−8.5534) n = 8.5534
5, −3, −11,...,
t10 = 5 + (10 − 1)(−8) t10 = −67
S10 = 10 (5 + 9*(−8)) = −335 2
1 5 3 , , ,..., 2 8 4t7 = 1 1 5 + (6) *( ) = 2 8 4
7 1 1 35 s7 = ( + 6( )) = 2 2 8 8
1 1 1 , , − ,..., 4 12 12
t20 = s20 =
1.00,1.05,1.10,...,
t12 = 1.00 + 11(0.05) = 1.55 s12 =
1 1 35 + 19(− ) = − 4 6 12 201 1 175 ( + 19(− )) = − 2 4 6 6
12 (1.00 + 11(0.05)) = 9.3 2
t1 = 8; t5 = 36
tn = t1 + (n − 1)d t5 = 36 36 = 8 + 4d 28 = 4d d =7 t10 = 8 + 9(7) = 71
s10 = 10 (8 + 9(7)) = 355 2
d ,...
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