Да.
Да, верно.
1) 534 * х = 0
х= 534 : 0
<em><u> х=0</u></em>
2) х : 831 = 0
х= 831 * 0
<em><u>х= 0</u></em>
3) 785 + х =785
х= 785 - 785
<em><u> </u></em><em><u>х = 0</u></em>
[(2³)^45-2^40]/31=(2^45-2^40)/31=2^40*(2^5-1)/31=2^40*31/31=2^40
1. 36^((0.5) - log6(sqrt(5)) = 36^(0.5) / 36^(log6(sqrt(5)) = 6/6^(log6(5)) = 6\5 = 1.2
2. log(0.09) (sqrt(0.027)) = log(0.3^2)(0.3^(3/2)) = (1/2)*(3/2)*log(0.3)(0.3) = 3\4 = 0.75