Question

a= (radical 8 +radical 2)x(radical 27-radical 3) b=radical 2 x(radical 12+2radical 75):(radical2 +2radical8- radical18) (a radical 2):b este natural

Answer 1

=2; 2-numar natural

daca nu intelehi ceva spune-mi

Answer 2

a= (√8+√2)×(√27-√ 3) = (2√2+√2)×(3√3-√ 3) = 3√2×2√3=6√6
b=√ 2 ×(√ 12+2√ 75):(√2 +2√8- √18)=
=√ 2 ×(2√3+2×5√3):(√2 +2×2√2- 3√2)=
=√ 2 ×12√3: 2√2=
=6√3
a√2 : b=6√6×√2 / 6√3=√6 ×√2 /√3 = √(3×2)×√2 / √3=√3×√2×√2 / √3= √2×√2=2