Question

proszę o obliczenia daj naj
log3 1/9 • log3 1/81 = log3 81​

Answer 1

Verified answer

domslam sie ze zamiast = mial byc +, bo ta rownosc nie zachodzi, zatem

log3(1/9) * log3(1/81) + log3 81​ =

log3(9)^(-1) * log3(81)^(-1) + 4 =

(-1)*log3(9) * (-1)*log3(81) + 4=

(-log3(9)) * (-log3(81)) + 4=

(-2) * (-4) +4 = 12