Question

Найдите значение log 2(16d),  если    log d0,25 = -2.

Answer 1

log(2)16+log(2)d=4+log(2)d=4+2=6
log(d)0,25=log(2)0,25/log(2)d
-4/log(2)d=-2⇒log(2)d=2