Question

宜蘭×小孩

求救各位大神第2題(1)(2)和第4題，拜託了 o(╥﹏╥)o

stagra
3lega + logb.
12.3
√ (2) 34:23
16) 542 x 3
- 3 log a + logo
loga - logb.
- logab.
(6) 105= 3x5 +17.
(5) 3645 = 36 x 5.= (38 x 5
XS.
A3(2)(3) (5)
()
(1)
43
=> 1o
+2
2. (1). a = log 2. b = log 3 c = log 7, t 1002a+b+c+1 = 7058 705600
(2). E a El log 1000 ) ( log a ) + log 100 - log a = 10 stk a= 10000
log 144 x 49
212a+b+c+1)
=7 (10g10) lloga) + logro - loga = 10.
Tag 7056
=> 212a+b+c+1).
3 x loga + log 10 - loga:10.
73/310g) + log 3 + log7+1).
=> 7056+
loga
ta-loga =
=> 7068.
- 41og2 + 2log 3 + J
> log 16 + log at
9 3 + 2log? ta
9 + log 49 + 3
- -->
3. 已知loga = 0.2,logb = 0.5,則下列哪些選項中的數大於100 ?(已知log2 = 0.3010)(多選)
1) a10 (2) 40a (3) 65 (4) a²b3 (5) a6b2
(5
(5)
(3)
05
2.5
-
6 (05)
axb" *** 1985
10
1,3
Boy / /
(4)
Too
a x6 - 16000

0,3
=a
(3)
( (5)
3. 已知loga = 0.2,logb = 0.5,則下列哪些選項中的數大於100?(已知log2 = 0.3010(多選)
(-) a10 (2) 40a (3) b5 (4) a2b3 (5) a6b2
10°
1005 b
69. (600577095 a x 6 1899-1985
a. 6002/ 10 ² = 100
+10.10
a x = (100 27x11005
40 x a = 4 x 10 x 10.2.
= 4 x 10.2
1.9.
= 10
10
(4)
(a)
1092
1004
x 10.5
- 100 u.1.5
AN13) (5)
位數
A4. 已知100.3010 : =2,100.4771 =3,試求(1.5) 60 的整數部分為11.
log 2 = 0.3010, 1093=0.4771

高中 數學 log 複習 108課綱

Answer 1

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ch_ing

只會2（1）和4