The value of the expression 47 C 4 + _ j =1 ^ 5 ^ 2- j C _ 3 is equal to
Mathematics · JEE Advanced · NTA Exams — Permutations and Combinations
The value of the expression 47C4 + \[\sum_{\mathrm{j}=1}^{5}{ }^{2-\mathrm{j}} \mathrm{C}_{3}\] is equal to
- 47C5
- 52C5
- 52C4
- None of these
Answer
(C) 52 C 4
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