1) (4a*4a^2*c) / (a^3*c*4a^2*c) = (16a^3*c) / (4a^5*c^2)
2) (5ac^3*4a^3*c) / (a^2*c*4a^3*c) = (20a^4*c^4) / (4a^5*c^2)
3) (4a*2a^4) / (2ac^2*2a^4) = (8a^5) / (4a^5*c^2)
4) (ac^4*8a^4*c) / (0,5ac*8a^4*c) = (8a^5*c^5) / (4a^6*c^2)
5) (5,5ac*4a^3*c) / (a^2*c*4a^3*c) = (22a^4*c^2) / (4a^5*c^2)
6) -(ax*4a^2*c) / (a^3*c*4a^2*c) = -(4a^3*cx) / (4a^5*c^2)
2sin2acos3a/-2sin2asin3a=-tg3a
5а²+10а = 0
5а(а+2) = 0
5а = 0 а+2 = 0
а = 0 а = -2