I will provide solutions of JEE Mains, JEE Advance, KVPY and all exam level problems of mathematics and and in future I also provide handwritten notes of mathematics of all competitive exams.
Friday, 11 February 2022
Proof of Derangement formula
Derangement Formula
Inclusion exclusion principle
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If you want solution of any math's problem please let me know.
No comments:
Post a Comment
If you want solution of any math's problem please let me know.