Ответ:
Объяснение:
1. √5,6*√2,1/√0,24=√11,76/√0,26=√49=7.
2. (√6³/₇-√2⁶/₇):√(5/63)=(√(45/7)-√20/7)*√(63*5)=
=√((45/7)*(63/5))-√((20/7)*(63*5))=√(45*63/(7*5))-√(20*63/(7*5))=
=√(9*9)-√(4*9)=9-2*3=9-6=3.
3. √(1130²-552²)=√((1130-552)*(1130+552))=√(578*1682)=√972196=986.
4. ⁴√36*⁶√216=⁴√6²*⁶√6³=√6*√6=6.