Question

сделайте 2 номер плиз

Answer 1

1)log81 (27)=y
81ˇy=27, (3ˇ4)ˇy=3³, 3ˇ(4y)=3³, 4y=3, y=3/4
log81 (27)=3/4
2)log(1/16) (8)=y
(1/16)ˇy=8, 2ˇ(-4y)=2³, -4y=3, y=-3/4
log(1/16) (8)=-3/4
3)log64 (2√2)=y
64ˇy=2√2,(2ˇ6)ˇy=2ˇ(3/2),2ˇ(6y)=2ˇ(3/2),6y=3/2,y=1/4
log64 (2√2)=1/4