ОДЗ:
log₈log₂(x+9)>0
log₂(x+9)>0
x+9>0, x>-9
log₃log₈log₂(x+9)=log₃2-1, 1=log₃3¹
log₃log₈log₂(x+9)=log₃(2/3)
log₈log₂(x+9)=2/3
log₂(x+9)=8²/³
log₂(x+9)=(2³)²/³
log₂(x+9)=4
x+9=2⁴, x=16-9. x=7
(1/2)^(√(x-3))=1. (1/2)^√(x-3)=(1/2)⁰
√(x-3)=0. ОДЗ: x-3≥0, x≥3
x-3=0, x=3