b3 = 4
b4 = 8
q = b4/b3 = 8/4 = 2
b3=b1*q^2 = 4
b1*4=4
b1 = 1
b5=b1*q^4 = 1*2^4=16
b1*b5=1*16=16
ОТВЕТ: 16
b3 = 4
b4 = 8
q = b4/b3 = 8/4 = 2
b3=b1*q^2 = 4
b1*4=4
b1 = 1
b5=b1*q^4 = 1*2^4=16
b1*b5=1*16=16
ОТВЕТ: 16