Question

Am nevoi de rezolvarile ex 1,2,3,4,5,6
Va rog mult!
Mulțumesc frumos!

Answer 1

Ex:1)4rad.27-5rad.12+3rad.48-2rad.75=4•3rad.3-5•2r3+ 3•4r3-2•5r3=12r3 - 10r3+ 12r3-19r3=4r3 2) 0,(3)x la a 2=. 27/ 256 3/10x la 2= 27/256 10/3•3/10=10/3•27/256 x la 2= 5• 9/128 x la 2 = 45/ 128 => x€ + sau - 3 rad.10/16 3) am uitat cum se făcea media geom 4) ...=2( rad7 + rad5)/ 2= r7+ r5- r5= r7 r7: r14/6= x/r2=> =>r2/6=x/r2 => X= 6 5) x € {0;1;2} 6) la geometrie sunt paleta de tennis