2015 + LOG7 20152+ LOG7 23+· · ·+ LOG7 2014A
2016. Tính Qtheo a, b.2015 + log
7
20152+ log7
23+· · ·+ log7
2014A. 5a+ 2b−1. B. −5a−2b−1. C. 5a+ 2b+ 1. D. 5a−2b−1.7
20152+ log7
23+· · ·+ log7
2014A. 5a+ 2b−1. B. −5a−2b−1. C. 5a+ 2b+ 1. D. 5a−2b−1.