Counting

Counting for JEE — concepts and worked problems.

Syllabus

  1. Counting

    1. The fundamental principle of counting
    2. The fundamental principle of counting — Problem Solving
    3. Factorials & the meaning of P(n, r)
    4. Permutations with repetition allowed
    5. Permutations of objects that are alike
    6. Combinations — the meaning of C(n, r)
    7. Selection problems & standard identities
    8. Selection problems & standard identities — Problem Solving
    9. Circular permutations
    10. Division & distribution into groups
    11. Derangements & inclusion–exclusion in counting