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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)? Problem involving math induction! If m and n are distinct real numbers, prove that (m+2)^2 = (n+2)^2 if and only if x+y=-4? Find a positive angle, less than 360 degrees, that is coterminal with a 1715 degree angle. Please show steps!!? What can you tell me about the flower of life? Sacred geometry? Where does it come from? Questions for medicine I could not get it and I need your help?