15т755kg=15755kg
15755/155=101
остаток(осталось) 100 кг
㏒₃27 - ㏒₁/₇ 7=㏒₃3³ -(-1)*㏒₇7=3+1=4
2^(1+log₂ 5)=2¹*2^log₂<span> 5=2*5=10
lg4+lg5=lg4*5=lg20=lg2*10=lg2+lg10=lg2+1
3</span>ˣ=7 x=㏒₃7
㏒₄x =㏒₀,₅√2 х=4^(㏒₀,₅√2 )=2^(2㏒₀,₅√2 )=2^(㏒₁/₂2 )=
=2^-1*^(㏒₂2 )=1/2^(㏒₂2)=1/2
(2+√5)^2-(2-√5)^2)/
/(2^3*√5^3)=
(4+4*√5+5-(4-4*√5+5))/
/(40*√5)=
=(9+4*√5-9+4*√5)/40*√5=
8*√5/40*√5=√5/5*√5=1/5