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(sin 60° + tg 30°) totul la 2

Răspuns :

sin 60°=√3/2
tg 30°=1/√3
(sin 60°+tg 30°)²=(√3/2+1/√3)=(√3/2+√3/3)²=[(3√3+2√3)/6]²=
=(5√3/6)²=25×3/36=2,08(3)



/=supra
sin 60°= 
√3 / 2
tg 30 =√3/3
(√3/2 +√3/3)² = [(3√3+2√3)/6]² =(5√3/6)² = 25 *3/6=75/36