Permutation and combination has some strange notations and formulae.
So, if a ca foundation, cpt student looks at this from a distance they think it is better to leave this topic and do something else.
But, actually once understood, the concept are easy and highly scoring one.
Not just that, Permutation and combination knowledge is also used in Probability and Theoretical distribution chapters in Statistics.
So, you must learn this concept otherwise you wont understand three chapters.
Watch this lecture to get started.
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