Question

problema 3 va roooooog

Answer 1

folosim distributivitatea inmultirii fata de adunare

√(75*√3)/2=√(25*3*3)/2=15/2

3√12*√3/2=3√(3*3*4)/2=3*3*2/2=9

9/√3*√3/2=9/2

deci a=15/2+9-9/2=3+9= 12.

b=0,(3) la -1=(1/3) la -1=3

Ma=12+3)/2=15/2=7,5