sin*cos = 1 => 3sin*cos = 3
(2x-3,8)(4,2+3,4)=1,9
(2x-3,8)7,6=1,9
2x-3,8=1/4
2x=0,25+3,8
2x=4,05
x=2,025
V5(V2+V5) V5*V2
V2(V2+V5) = V2*V2 = V10/2
<em>√12у+√48у-√75у=2√3у+4√3у-5√3у=√3у(2+4-5)=√у</em>