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<span> 1) log5х=2/3
х=5</span>²/³
х=³√25<span>
2) log2х=0.6 0,6=6/10=3/5
</span> log2х=3/5
х= 2³/⁵
х=⁵√8
2sinx-cosx=√5/2
√5 sin(x-arcsin(√5/5)=√5/2
sin(x-arcsin(√5/5)=1/2
x-arcsin(√5/5)=(-1)^n * (π/6) +πn,n∈Z
x=(-1)^n * (π/6)+arcsin(√5/5) +πn,n∈Z
1) f(x)+3g(x)+3x-2=х³+3(х²+1)+3х-2=
=х³+3х²+3+3х-2=х³+3х²+3х+1.
2) g( f(x))=(х³)²+1=х^6+1.