Argand diagrams Mixed exercise 2 . 1 a . zz. 2 ++=5 10 0. Solve by completing the square. ( ) ( ) 2 2 5 2510 0 24 5 15 24 5 15i 2 2 ... z =−+1 4i is a solution ...
ERD Exerciser. It's a stand-alone java application that helps students practice their skills at drawing entity-relation diagrams (ERDs) to model data. It can also be used in 'drawing mode' in which the student can use the drawing facilities alone (useful for assignments).
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