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Quadratic Equations and Theory of Equations — Syllabus

Telangana Open School (TOSS) · Class 12 · Mathematics

What Quadratic Equations and Theory of Equations covers in Telangana Open School (TOSS) Class 12 Mathematics: 4 topics, for the 2026-27 session.

58 questions23 flashcards20 formulas & key relations5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Mathematics · 2026-27

Topics in Quadratic Equations and Theory of Equations

1

Solving Quadratic Equations

  • A quadratic equation is of the form $ax^2 + bx + c = 0$, where $a \neq 0$.
  • Two main methods: Factorization and Quadratic Formula.
  • Factorization involves splitting the middle term and grouping.
2

Nature of Roots and Discriminant

  • Discriminant $D = b^2 - 4ac$ decides the type of roots.
  • If $D > 0$: two distinct real roots.
  • If $D = 0$: two equal real roots (repeated root).
3

Relations Between Roots and Coefficients

  • For $ax^2 + bx + c = 0$, sum of roots $\alpha + \beta = -\frac{b}{a}$
  • Product of roots $\alpha\beta = \frac{c}{a}$
  • These relations help in forming equations from given roots.
4

Sign of Quadratic Expression and Extreme Values

  • The sign of $ax^2 + bx + c$ depends on the value of x and the coefficient 'a'.
  • If D < 0, the expression has the same sign as 'a' for all real x.
  • If D = 0, expression has same sign as 'a' except at vertex.

Key Concepts

Central concept: Quadratic Equations and Theory of Equations

Quadratic EquationSolving Quadratic EquationsNature of RootsRelation Between Roots and CoefficientsSign of Quadratic ExpressionMaximum and Minimum ValuesTheory of Equations

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Frequently Asked Questions

What are the important topics in Quadratic Equations and Theory of Equations for Telangana Open School (TOSS) Class 12 Mathematics?
Key topics in Quadratic Equations and Theory of Equations include Solving Quadratic Equations, Nature of Roots and Discriminant, Relations Between Roots and Coefficients, Sign of Quadratic Expression and Extreme Values. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Quadratic Equations and Theory of Equations for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 58 practice questions on Quadratic Equations and Theory of Equations. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Telangana Open School (TOSS) Class 12 Mathematics Syllabus

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