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Cos 60+2sin30+1/2tg patrat 60-ctg 45

Răspuns :

Capsunica35
=1/2+2*1/2+1/2*(√3/3)^2-1=
1/2*2/2+1/2*3/9-1=
2/4+3/18-1=
1/2+1/3-1=
3/6+2/6-6/6=5/6-6/6=-1/6=-0,1(6)

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