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How long does Equazen supplement really take to make effect in adults with inattentive adhd? Has someone tested it? Make a conjecture about the next item in the sequence.1, -4, 9, -16,? What can you tell me about the flower of life? Sacred geometry? Where does it come from? Diameter of a wheel 80cm. If the wheel rotates through an angle of 200degrees, how many cm does it move? Show steps please!? Verify that M(u,v)=A +u(B-A) +v(C -A) ( A,B,C vectors) is a parametric representation of surface of the triangle A(1,0,0) B(0,-1,2) C(0,2,1)?