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comparati numerele 8sin60° si 12ctg60°.

Răspuns :

8*√3/2=4√3
12*1/√3=12/√3  rationalizam    12√3/3=4√3

4√3   =   4√3
8 sin 60=8.√3/2
12 ctg 60= 12.√3/3
daca aducem la acelasi numitor⇒
24√3/6=24√3/6