sin (2x) = 2sin(x)cos(x)
sin² (x) + cos² (x) = 1
log(a) b = c a^c = b
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(sin(x) - cos(x) )² - 1 + 1/2*sin(2x) = sin² (x) - 2sin(x)cos(x) + cos²(x) - 1 + 1/2*sin(2x) = 1 - sin(2x)+1/2*sin(2x) - 1 = - 1/2*sin(2x)
(-1/2*sin(2x))² = 1/4*sin²(2x)
log(2) (1/4*sin²(2x) + 1/4*cos²(2x)) = log(2) 1/4*(sin²(2x) + cos²(2x)) = log(2) 1/4 = log(2) 2⁻² = -2
8,6* 1000000 м кубических