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chithang6a

chithang6a

Đăng ký: 22-08-2015
Offline Đăng nhập: 02-10-2017 - 20:17
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chứng minh x:a=y:b=z:c

22-04-2017 - 12:49

cho (bz-cy):a=(cx-az):b=(ay-bx):c

chứng minh x:a=y:b=z:c


CMR : $\left ( a+b \right )^{2}\leq a^{2}+b^...

22-05-2016 - 10:17

CMR :   $\left ( a+b \right )^{2}\leq a^{2}+b^{2}$


CMR: $\left ( a-b \right )= \left ( b-a \right )$

12-04-2016 - 21:41

CMR $\left ( a-b \right )= \left ( b-a \right )$   $(a,b \epsilon Z )$


CMR: $\left ( a-b \right )= \left ( b-a \right )$

12-04-2016 - 21:40

$\left ( a-b \right )= \left ( b-a \right )$


TÍNH $2^{1454372088831}-1= ?$

26-11-2015 - 20:32

$2^{1454372088831}-1= ?$