√366-√166+ 2√6 = √366-√166+√24 = <span>√224</span>
3×(х+3)
3x+9.
2×(7-a)
14-2a.
(m+3n)×4
4m+12n.
2×(3x-2y)×3
6×(3x-2y) 6 т.к 2×3
18х-12y
1,2х-1-0,8х+8
1,2х-0,8х-1+8
0,4х+7
Решение:
2sin^3x-cos2x-sinx=0
sinx(2sin^2x-1)-cos2x=0
-sinxcos2x-cos2x=0
-cos2x(sinx+1)=0
cos2x=0
2x=п/2(2k+1)
x=п/4(2k+1)
sinx=-1
x=-П/2+2пk
Log₅ (1/35)+ log₆ 36- log₇ 1- log₄ 4=
Log₅ (35⁻¹)+ log₆ 36- log₇1- log₄ 4 =-
Log₅ 35 +1-0-1=-
Log₅(5·6)=-(
Log₅5+ Log₅7)=-1-
Log₅7