А)2√2+√50-√98 = 0 б)(3*√5-√20)*√5 = 5 в)(√3+√2)² = 9,89897948556636 а)5-√5 √10-√2 = 1,58113883 2 √7 = 0,755928946018454 4 √11+3 = 4/√14 = 1,06904496765