Question

Умножьте:
-1/3*(log7 8 + log7 7)

Answer 1

-1/3*(㏒₇8+㏒₇7)=-1/3* ㏒₇2³ + (-1/3 *㏒₇7)=-1/3 * 3㏒₇2- 1/3=㏒₇(1/2) -1/3
можно так
-1/3*(㏒₇8+㏒₇7) = -1/3㏒₇8*7=-1/3㏒₇56