WorksheetsTestul 7: Logaritm - schimbarea bazei
Total questions: 9
Worksheet time: 10mins
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Worksheetslog84 =
21
23
32
31
m =log23 ⋅ log34 ⋅ log45 ⋅……… ⋅ log1516
1
16
4
0
Relatia logxy = logzxlogzy este :
Adevarat
Fals
Dacă b=log74 , exprimați în funcție de b, numărul log1649
x=3b
x=b1
x=2b
x=2b
log525=
4
-4
2
8
log25=
log72log75
log75log72
log721
log7(2⋅5)
Relatia logab= logba1 este
Adevarat
Fals
Pentru a=log23 exprimati în funcție de a, numărul log427
x=2a
x=23a
x=2a
x=3a +21
log a a1 =
a
1
−32
- 2
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