Question 1

M12 loga 01

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

Answer

Answer

Đúng với $\forall a$

Answer

a > 0

Question 2

M12 loga 01.1

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

Answer

a > 0

Answer

Đúng với $\forall a$

Answer

Question 3

M12 loga 01.2

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

Answer

Đúng với $\forall a$

Answer

a > 0

Answer

Question 4

M12 loga 01.3

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

Answer

Answer

a > 0

Answer

Đúng với $\forall a$

Question 5

M12 loga 01.4

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

a > 0

Answer

Answer

Answer

Đúng với $\forall a$

Question 6

M12 loga 01.5

$a^{\alpha}$

Khi $\alpha\in N^{\cdot}$ thì

Accepted Answer

a > 0

Answer

Answer

Đúng với $\forall a$

Answer

Question 7

M12 loga 02

a được gọi là căn bậc n của b nếu

Accepted Answer

Answer

Answer

Answer

Question 8

M12 loga 02.1

a được gọi là căn bậc n của b nếu

Accepted Answer

Answer

Answer

Answer

Question 9

M12 loga 02.2

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Question 10

M12 loga 02.3

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Question 11

M12 loga 02.4

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Answer

Answer

Question 12

M12 loga 02.5

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Answer

Answer

Question 13

M12 loga 02.6

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Answer

Question 14

M12 loga 02.7

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Answer

Question 15

M12 loga 02.8

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Question 16

M12 loga 02.9

Khi $n\ lẻ\ và\ b\in R$ thì

Accepted Answer

Answer

Answer

<math>Không\ tồn\ tại\ căn\ bậc\ n\ của\ b</math>

Answer

Question 17

M12 loga 03

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Question 18

M12 loga 03.1

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Question 19

M12 loga 03.3

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Question 20

M12 loga 03.4

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Question 21

M12 loga 03.5

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Question 22

M12 loga 03.6

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{2\alpha\beta}</math>

Question 23

M12 loga 03.7

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha}.b^{\alpha}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Question 24

M12 loga 03.8

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>a^{\alpha}.b^{\alpha}</math>

Answer

<math>a^{\alpha\beta}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Question 25

M12 loga 03.9

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\frac{a^{\alpha}}{b^{\alpha}}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{\alpha}.b^{\alpha}</math>

Question 26

M12 loga 03.10

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\frac{a^{\alpha}}{b^{\alpha}}</math>

Answer

<math>a^{\alpha-\beta}</math>

Answer

<math>a^{\alpha+\beta}</math>

Answer

<math>a^{\alpha}.b^{\alpha}</math>

Question 27

M12 loga 03.11

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

<math>\left(ab\right)^n</math>

Question 28

M12 loga 03.12

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

<math>\left(ab\right)^n</math>

Question 29

M12 loga 03.13

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

<math>\left(ab\right)^n</math>

Answer

Answer

Question 30

M12 loga 03.14

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

<math>\left(ab\right)^n</math>

Answer

Answer

Question 31

M12 loga 03.15

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

Question 32

M12 loga 03.16

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

Question 33

M12 loga 03.17

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

<math>\left|a\right|</math>

Answer

Answer

<math>\left|a\right|,\ khi\ n\ lẻ</math>

Question 34

M12 loga 04

Cho biểu thức $n\ lẻ\ và\ b\in R$ , $x>0$

Accepted Answer

Answer

Answer

Answer

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Answer

Question 35

M12 loga 05

Cho $n\ lẻ\ và\ b\in R$ khi

Accepted Answer

Answer

Answer

Answer

Question 36

M12 loga 05.1

Cho $n\ lẻ\ và\ b\in R$ khi

Accepted Answer

Answer

Answer

Answer

Question 37

M12 loga 05.2

Tìm x:

$2^x=4$ ;

$2^x=8$

Accepted Answer

$a\in R$ ;

$2^x=4$

Answer

$a\in R$ ;

$2^x=4$

Answer

$a\in R$ ;

$2^x=4$

Answer

$a\in R$ ;

$2^x=4$

Question 38

M12 loga 06

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\alpha\log_ab</math>

Answer

Answer

Answer

<math>\log_a\alpha b</math>

Question 39

M12 loga 06.1

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\alpha\log_ab</math>

Answer

Answer

Answer

<math>\log_a\alpha b</math>

Question 40

M12 loga 06.2

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\alpha\log_a\left|b\right|</math>

Answer

Answer

<math>\alpha\log_ab</math>

Answer

Question 41

M12 loga 06.3

$n\ lẻ\ và\ b\in R$

Accepted Answer

<math>\alpha\log_a\left|b\right|</math>

Answer

Answer

Answer

<math>\alpha\log_ab</math>

Question 42

M12 loga 06.4

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

Question 43

M12 loga 06.5

$n\ lẻ\ và\ b\in R$

Accepted Answer

Answer

Answer

Answer

Question 44

M12 loga 06.6

$n\ lẻ\ và\ b\in R$ , $x>0$

Accepted Answer

<math>\frac{\beta}{\alpha}\log_ab</math>

Answer

<math>-\frac{\beta}{\alpha}\log_ab</math>

Answer

<math>\frac{\alpha}{\beta}\log_ab</math>

Answer

Question 45

M12 loga 06.7

$n\ lẻ\ và\ b\in R$ , $x>0$

Accepted Answer

<math>\frac{\beta}{\alpha}\log_ab</math>

Answer

<math>-\frac{\beta}{\alpha}\log_ab</math>

Answer

<math>\frac{\alpha}{\beta}\log_ab</math>

Answer

Question 46

M12 loga 07

$a^{\alpha}$

Accepted Answer

Answer

Answer

Answer

Question 47

M12 loga 07.1

$a^{\alpha}$

Accepted Answer

Answer

Answer

Answer

Question 48

M12 loga 07.1

$a^{\alpha}$

Accepted Answer

Answer

Answer

Answer

Question 49

M12 loga 07.2

$a^{\alpha}$

Accepted Answer

Answer

Answer

Answer

Question 50

M12 loga 07.3

$a^{\alpha}$ =? (0c e1 ;b>0)

Accepted Answer

logab

Answer

log ba

Answer

log cb

Answer

log ac

Question 51

M12 loga 08.1

c^$log_ab$=? ( $2^x=8$

Accepted Answer

b^{$n\ lẻ\ và\ b\in R$}

Answer

b^{$n\ lẻ\ và\ b\in R$}

Answer

c^{$n\ lẻ\ và\ b\in R$}

Answer

a^{$n\ lẻ\ và\ b\in R$}

Question 52

M12 loga 08.2

$a^{\alpha}$ ( $log_ab$ )

Accepted Answer

Answer

Answer

Answer

Question 53

M12 loga 08.3

$n\ lẻ\ và\ b\in R$ ( $x>0$ )

Accepted Answer

Answer

Answer

Question 54

M12 loga 09

Với các số thực dương a,b bất kì. Mệnh đề nào dưới đây đúng?

Accepted Answer

Answer

Answer

Answer

Question 55

M12 loga 10

Cho các số thực dương a,b. Với $n\ lẻ\ và\ b\in R$ . Khẳng định nào sau đây đúng?

Accepted Answer

A

Answer

C

Answer

B

Answer

D

Question 56

M12 loga 11

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 57

M12 loga 11 GT

Accepted Answer

B

Answer

A

Answer

C

Answer

D

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