Sections
1. The Factorial
2. Exponent of Prime p in n!
3. Fundamental principles of counting
Visit for revision points and some explanation
http://iit-jee-maths.blogspot.com/2008/06/ch-8-permutations-and-combinations-1.html
Shri K.V.S.S. Gangadhara Sastry, Kakinada
3 years ago
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