Log2(x)/log2(4) + log2(x)/log2(8) = 5 (ОДЗ x >0)
1/2*log2(x) + 1/3*log2(x) = 5
5/6 * log2(x) = 5
1/6* log2(x) = 1
log2(x) = 6
x = 2^6
x = 64
(1/3)^x = 27
(1^x) = 27 * (3^x)
In(1^x) = In(27*(3^x))
In(3x) + 3In(3) = 0
x = -3
1. 2d1d2/2+h*P
P=4*sqrt(6^2+8^2)=40
S=12*16+40*8=16(12+20)=16*32=512
2.R=sqrt(17^2-8^2)=15
S=ПR^2+ПRL=ПR(R+L)=15П(15+17)=480П