Question

Помогите решить: 1,16; 1,17; 1,18

Answer 1

16
(1/3-9/4):(2-9/16)*(1-1/6)^-1+2*1/10=(4/12-27/12):23/16*(5/6)^-1+1/5=
=-23/12*16/23*6/5+1/5=-8/5+1/5=-7/5=-1,4
17
2√5-2*3√5+2*2√5=2√5-6√5+4√5=0
18
∛(√52-5)(√52+5))=∛(52-25)=∛27=3