Question

Va rog mult sa ma ajutati cu acest exercitiu. Daca se poate, rezolvarea completa. Dau coroana pentru asta :) Multumesc :*

Answer 1

a)3 1/3×√0,0225-0,(6)×√1,125×2+0,2(7)×√0,09=
=10/3×√225/10000-6/9×√225/100+(27-2)/90×√9/100=
=10/3×15/100-2/3×15/10+25/90×3/10=
=1/1×1/2-2/3×3/2+1/6×1/2=
=1/2-1+1/12=
=-1/2+1/12=
=(-6+1)/12=
=-5/12=
=-0,41(6)


b)0,3×√[0,8(3)]²-0,24×√14,0625+0,(3)×√0,81=
=3/10×0,8(3)-24/100×√140625/10000+3/9×√81/100=
=3/10×(83-8)/90-6/25×375/100+3/9×9/10=
=3/10×75/90-6/25×15/4+3/10=
=3/10×5/6-3/5×3/2+3/10=
=1/2×1/2-3/5×3/2+3/10=
=1/4-9/10+3/10=
=1/4-6/10=
=1/4-3/5=
=(5-12)/20=
=-7/20=
=0,35


c)2,(3)×√81/784+√12,96:√0,36-√0,1024×√0,64=
=(23-2)/9×9/28+√1296/100 :√36/100-√1024/10000×√64/100=
=21/9×9/28+36/10 :6/10-32/100×8/10=
=3/1×1/4+36/10 ×10/6-8/25×4/5=
=3/4+6-32/125=
=(375+3000-128)/500=
=3247/500=
=6,494