Lim x->1(1-x)(1+x+x^2)/1-x=Lim x->1 1+x+x^2=1+1+1=3
25 в 25=25 в 2*25 в 23
Ответ:
Объяснение:
ctg(x/2+π/8)=√3
x/2+π/8=π/6+πn
x/2=π/6-π/8+πn |×2
x=π/3-π/4+2πn=(4π-3π)/12+2πn=π/12+2πn
x=π/12+2πn.