1.
log₂ 16 + log₁/₃9 = log₂ 2⁴ + log₁/₃ (1/3)⁻² = 4 - 2 = 2
2.
5^log₅10 - 1 = 10/5 = 2
3.
log₆9 + 2 log₆ 2 = log₆(9 * 4) =log₆ 36 = 2log₆ 6 = 2
4.
lg√30 - lg √3 = lg √(30/3) = lg √10 = 1/2
5.
2^х = 11
х = log₂ 11
6.
log₀,₂ х = log√₅5
log₀,₂ х = log√₅(√5)²
log₀,₂ х = 2
х = (0,2)²
х = 0,04