CHO A 0; , M N ∈  . KHẲNG ĐỊNH NÀO SAU ĐÂY ĐÚNG

Question

Câu 31: Cho  a > 0; , m n ∈  . Khẳng định nào sau đây đúng?   A.  am+ an = am n+ . B.  amn an m.= − C.  ( ) am n = ( ) . an m D.  a am. n = am n− .a

Accepted Answer

Câu MÃ ĐỀ 001 002 003 004 005 006 007 008 009 010 011 012 1 D C C C D B A A C A B B 2 C A B A C D D B A B D A 3 D C A B B B B A B A B D 4 B B C C C D C D A B C B 5 C D A D B C B B D D A D 6 A B C A A A A D B A C C 7 C D D C C B B B A C D B 8 B B B B A C C D B A A C 9 C A C A C D D B D C B D 10 A B B C B A B D B B C C 11 D C D A C B A C C A D B 12 C A B D B D B A D D B D 13 D C A A A C D D B B A B 14 B B B C B A A C D C C D 15 C D D B C D B B B B D C 16 D A B C D B D A D C B D 17 C C D D A D C D A D A A 18 D A C C C C D A B C B D 19 C B D B A A B B A A C B 20 B A C C B B D C D B B A 21 D D B D D A B B C D D B 22 A B C B B B C A B C A C 23 B D B C C C A C A A C B 24 D B D B B B B D D B B D 25 A C C D D A D A C D C C 26 C A B B B C C B D A A B 27 B B A D C B D C B D C C 28 C A D C B D A B D C D B 29 B C A D D C B D C A C A 30 D D D A A B C C A C D B 31 C B C D C C D D D D C A 32 A D D C A D B C B C A C 33 B C B B C B A B C B B A 34 C D D A B D D A D D C D 35 D B C D C B C C A C A A 36 D C B B D C A A C B B D 37 A A D A B D C C A D C C 38 D C C B A D A A C B A A 39 B A D C B D B D A C D B 40 A D A A A A D C C D B D 41 B C C D A C C B A A A B 42 D A B B D A D A B D D D 43 B C A A C C B D A A A C 44 A A B D D A C C C B B A 45 B D A B D B C A D C A A 46 C B D A A C C B C B D D 47 A B A B D A D C A A D A 48 A C C D A D A C B C B A 49 B D A D D C C D C D D C 50 A D A A D A A D B A D C 013 014 015 016 017 018 019 020 021 022 023 024 1 B D D C C A A C D C B B 2 A B C A B C C B A D C C 3 D D D D D A A D C B A D 4 C A B C B B C B B D D C 5 B B C A C C A D D C B A 6 C C A C B D C B C B D D 7 D D D B A A A D D C A B 8 A A B C D B B C B B B D 9 B C D D C A D A A C C C 10 A A A A B D A B B D A A 11 D C C C C A C A D C D B 12 B D D B D D A C C D C D 13 A C C A B C C A A B B B 14 B A A D D D B B B C D C 15 A C D B B B A A C D B B 16 D B B D C A D D B A D D 17 A C C B A B C A C D B B 18 C B D A C D A D D C A D 19 A C A B A C D C A A D A 20 B D B C D A C B B C C C 21 C B D B A D A C A D A D 22 D A B D D C C D C B D A 23 B D D C C A B A D C B B 24 D B B A D C D D B A A C 25 A A D C C A A A A C D B 26 C B A A D B D B D A C D 27 B A B C B A A C B C A B 28 A D C A A D D B A B D A 29 D B A B D A C A D A C D 30 A A C D C C D D C D B C 31 B D A A D A B B A B A A 32 A A C B B D C D C A D D 33 D D A D D C A B A B C A 34 C C B C C B C D C C D D 35 A A C D B D D B B A B B 36 D C B A A C C C C B C D 37 C B C D D B B D D D D A 38 B C B C A B B B A A B C 39 D D A B D D D D C D B B 40 C C D A A B B C B A A C 41 C B C D B B D A A C B B 42 C A D C A D B D D B D C 43 D C A D C B D A B D A C 44 A D C D A D B C A A C D 45 D D A A B C D C B B A C 46 B A C B C B B A D D C A 47 B A A D A C C A C B A A 48 C C B B A A B C D A A B 49 C D D A A D B C B A C A 50 D B A B B C B A D A C C

CHO A > 0; , M N ∈  . KHẲNG ĐỊNH NÀO SAU ĐÂY ĐÚNG

Câu 31: Cho ^a ^> ^{0; ,} ^{m n} ^∈  . Khẳng định nào sau đây đúng?

A. a

+ a

= a

. B. a

a

.

=

C. ( ) a

= ( ) . a

D. a a

.

= a

.

a

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