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Exercițile 3,4 pls!!!!!!!!!!

Exercițile 34 Pls class=

Răspuns :

3)sin30=1/2
   cos30=radical3/2
tg30=radical3/3
ctg30=radical3
sin60=radical3/2
cos60=1/2
tg60=radical3
ctg60=radical3/3
4)sin45=radical2/2
cos45=radical2/2
tg45=1
ctg45=1