Continuity and Differentiability — Syllabus
Madhya Pradesh Board · Class 12 · Mathematics
What Continuity and Differentiability covers in Madhya Pradesh Board Class 12 Mathematics: 4 topics, for the 2026-27 session.
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Topics in Continuity and Differentiability
1. Continuity at a Point and on an Interval
- A function is continuous at a point when its limit at that point equals its value there.
- A function is continuous if it is continuous at every point of its domain.
- For a closed interval [a,b], continuity at the endpoints is checked using one-sided limits.
2. Standard Continuous Functions and Algebra of Continuity
- Every polynomial function is continuous.
- Every rational function is continuous wherever its denominator is nonzero.
- The sine function is continuous everywhere.
3. Differentiability and Its Relation to Continuity
- The derivative at a point is defined as a limit of the difference quotient, if the limit exists.
- A function is differentiable at a point when this limit exists.
- A function is differentiable in an interval if it is differentiable at every point of the interval.
4. Chain Rule and Derivatives of Composite Functions
- The chain rule is the main tool for differentiating composite functions.
- If f = v∘u and t = u(x), then df/dx = (dv/dt)(dt/dx).
- For three composed functions, multiply the derivatives step by step.
Key Concepts
Central concept: Continuity and Differentiability
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