Question

(log3 2 + 3log3 0.25)/(log3 28-log3 7)

3 основания логарифма
во второй скобке будет log3 4
в первой 3log3 0.5
а далше не выходит

Answer 1

[log_3 (2) + 3log_3 (1/4)] / [log_3 (28) - log_3 (7)] = 
= log_3 [2*(1/64)] /[ log_3(28/7)] = log_3 (1/32) / log_3 (4) =
 = [-5*log_3 (2)] / [2*lpg_3 (2)] = -5/2 = - 2,5

Answer 2

наверно не [-5*log_3(2)] a [-4*log_3(2)]

Answer 3

а не тупанул

Answer 4

(0,25) = 1/4; (1/4)^3 = 1/64; 2*(1/64) = 1/32 = 2^(-5)