Lê Quốc Trần Anh Coordinator
03/08/2017 at 08:57-
یևσϞջ♱ɮևσϞ➪ȿ₂ 03/08/2017 at 09:42\(C=10101\cdot\left(\dfrac{5}{111111}+\dfrac{5}{222222}-\dfrac{4}{3\cdot7\cdot11\cdot13\cdot17}\right)\)
\(\Leftrightarrow C=\dfrac{5}{11}+\dfrac{5}{22}-\dfrac{148}{187}\)
\(\Rightarrow C=-\dfrac{41}{374}\)
Lê Quốc Trần Anh selected this answer. -
baohong912006 04/08/2017 at 08:38C=10101⋅(5111111+5222222−43⋅7⋅11⋅13⋅17)C=10101⋅(5111111+5222222−43⋅7⋅11⋅13⋅17)
⇔C=511+522−148187⇔C=511+522−148187
⇒C=−41374⇒C=−41374