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Link to Complex

Mathematics · Class 10

If D=-16, sqrt(D)=4i in C. Roots are still a conjugate pair. On a real-only paper, write 'no real roots'. On a complex paper, simplify with i.

conjugates if D<0
D>0 two reals
D=0 repeated
keep the ideas separate
Link To Complex: If D=-16, sqrt(D)=4i in C. Roots are still a conjugate pair. On a real-only paper, write 'no real ro
WHAT — LINK TO COMPLEX: If D=-16, sqrt(D)=4i in C. Roots are still a conjugate pair. On a real-only paper, write 'no real ro
HOW — Use the idea: Identify what is given, select this topic's rule or evidence, apply it one step at a time, and check
CORE UNDERSTANDING: If D=-16, sqrt(D)=4i in C. Roots are still a conjugate pair. On a real-only paper, write 'no real ro

Right triangle — Link to Complex — original sketch for this lesson (not copied from a textbook).