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Sections
Complex Numbers and Quadratic Equations
Pick a section. You read the idea first, then answer questions on it.
1. Why the real numbers need i
1 idea
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2. The four powers of i
2 ideas
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3. Arithmetic that is almost ordinary
2 ideas
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4. When two complex numbers are the same
1 idea
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5. The conjugate, and what it is for
3 ideas
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6. Measuring size: the modulus
1 idea
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7. The picture: a plane, not a line
3 ideas
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8. Back to the quadratic
2 ideas
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9. Facts about the roots, without the roots
2 ideas
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10. One adjunction, and everything else
1 idea
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11. Two traps this chapter sets
2 ideas
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12. Practice set
2 ideas
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13. Chapter-end problems
1 idea
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14. JEE-application problems
1 idea
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