CMR: A=1494.1495.1496
a)A chia hết cho 180
b)A chia hết cho 495
K
Khách
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4 tháng 10 2015
1) ta có : 180= 9 x 5 x 4
Mà 1494 chia hết cho 9; 1495 chia hết cho 5 và 1496 chia hết cho 4.
=> 1494 x 1495 x 1496 chia hết cho 180.
2)Ta có 495= 9 x 5 x 11
Mà 1494 chia hết cho 9; 1495 chia hết cho 5 và 1496 chia hết cho 11.
=> 1494 x 1495 x 1496 chia hết cho 495.
HH
1
25 tháng 9 2015
a) Ta có: 1494:9
1495:5
1496:4
=> 1294.1495.1496:9.5.4
=>1494.1495.1496:180
b)Ta có: 1494:9
1495:5
1496:11
=>1494.1495.1496:9.5.11
=>1494.1495.1496:495
K
0
6 tháng 10 2017
1)...1494 chia hết cho 9, 1495 chia hết cho 5, 1496 chia hết cho 4 nên
...A=1494.1495.1496 chia hết cho 9.4.5=180 (đpcm)
2)1494 chia hết cho 9, 1495 chia hết cho 5, 1496 chia hết cho 11 nên
...A=1494.1495.1496 chia hết cho 9.5.11=495 (đpcm)
29 tháng 8 2017
a)
...1494 chia hết cho 9, 1495 chia hết cho 5, 1496 chia hết cho 4 nên
...A=1494.1495.1496 chia hết cho 9.4.5=180 (đpcm)
b)1494 chia hết cho 9, 1495 chia hết cho 5, 1496 chia hết cho 11 nên
...A=1494.1495.1496 chia hết cho 9.5.11=495 (đpcm)
7 tháng 7 2017
1) ta có : 180= 9 x 5 x 4
Mà 1494 chia hết cho 9; 1495 chia hết cho 5 và 1496 chia hết cho 4.
=> 1494 x 1495 x 1496 chia hết cho 180.
2)Ta có 495= 9 x 5 x 11
Mà 1494 chia hết cho 9; 1495 chia hết cho 5 và 1496 chia hết cho 11.
=> 1494 x 1495 x 1496 chia hết cho 495.
k mình nha !!!
16 tháng 10 2022
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AL
3 tháng 11 2018
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