CBSE Class 12 Mathematics: 50 Questions to Secure Your 100/100 in 2026!

CBSE Class 12 Mathematics

The Complete 50 Question Masterlist

Target 100/100

Relations, Functions & ITF

  1. Equivalence Relation proofs (Reflexive, Symmetric, Transitive).
  2. Bijective functions: Proving \(f(x)\) is one-one and onto.
  3. Principal value branch of Inverse Trig Functions.
  4. ITF Simplification:
    \(\tan^{-1}\left(\frac{\cos x}{1-\sin x}\right)\)

Matrices & Determinants

  1. Matrix Method: Solving 3-variable linear equations. 5 Marks
  2. Properties of Determinants (proving identities).
  3. Inverse of a matrix using Adjoint method.
  4. Finding the area of a triangle using determinants.

Calculus (Part I & II)

Weightage: ~35 Marks | High Priority

  1. Continuity: Finding unknown \(k\) at a point.
  2. Parametric Differentiation: \(\frac{dy}{dx}\) for functions of \(t\) or \(\theta\).
  3. Maxima & Minima: Applied word problems (Cylinder/Sphere). Case Study
  4. Definite Integrals: Properties like:
    \[\int_0^a f(x)dx = \int_0^a f(a-x)dx\]
  5. Area Under Curve: Area between two parabolas or a circle and line. 5 Marks
  6. Differential Equations: Integrating Factor (I.F.) and Homogeneous forms.
[Image of a graph showing the area between two curves for integration]

Vectors & 3D Geometry

  1. Scalar Triple Product and Projection of vectors.
  2. Shortest Distance: Between two skew lines. Guaranteed
  3. Equation of a plane passing through three non-collinear points.
  4. Angle between a line and a plane.

LPP & Probability

  1. LPP Graphical: Feasible region and optimal solution. 5 Marks
  2. Bayes’ Theorem: Inverse probability problems. Case Study
  3. Probability distribution and Mean of a random variable.

Asterisk Classes: Scoring Strategy

  • Steps Matter: In CBSE, even if your final answer is wrong, correct steps can fetch you 80% marks. Never skip steps in Calculus.
  • Rough Work: Keep a neat margin for rough calculations. It helps you double-check your Adjoint and Determinant values easily.
  • Graph Accuracy: For LPP, use a sharp pencil and clearly label the corner points of the shaded region.
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