if a and b denote vectors oa and ob indicate on the same diagram the vectors oc and od denoted by a+b and a-b. draw on another diagram the vector oe denoted by a+2b
Find the parametric equation of the line that passes through the points (0,1,1) and (1,0,-1).
A conic section is given by the equation 57x^2+14√3 xy+43y^2-576=0, identity and sketch the conics.