Решение
<span>4x+3/4-2x+2/4=1
2x = 1 - 5/4
2x = - 1/4
x = - 1/8</span>
1) q, если b1=24, b2=36
q = b2/b1
q = 36/24 = 3/2 = 1,5
2) найти:<span>q, если b2=33, b3= 44
q = b3/b2
q = 44/33
q = 4/3
q = 1(1/3)</span>
S6 = (a1 + a6)·6/2 = (а1 + а1 + 5d)·3 = (2a1 +5d)·3
d=-1 1/3 - (-3 2/3) = -1 1/3 + 3 2/3 = 2 1/3 = 7/3
S6 = (2·(-3 2/3) + 5·7/3)·3 =(-22/3 + 35/3)·3 = 13/3·3 = 13
(3√5+2√10)²=<span>(3√5)</span>²<span>+12</span>√5*√10<span>+(2√10)² =45+12</span>√50+40=85+12√(25*2)=
= 85+60√2