<span>ctg(2П-3 arcsin √2/2) = ctg (2pi - 3*pi/4) = ctg (8pi/4 - 3pi/4)</span> =
= ctg (5pi/4) = 1
ответ: 1
2^4=16 0,125=1/8=(1/2)^3=2^-3
(2^4 * 2^-3)^6=2^6=64
B3 = b1*q^2 ==>
b1*q^2 = 64
b1*(1/2)^2 = 64
b1 = 64 / 0.25
b1 = 256
S7 = (b1*(1 - q^7))/(1 - q) = (256*(1 - (1/2)^7))/(1 - (1/2)) = 508
6+3=9
6*3=18
значит, m²+n²=6²+3²=36+27=63