Math, asked by Mohit0007, 1 year ago

Please answer this question urgently, and short trick method of solving permutation and combination addition​

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Answered by rockyverma1227
2

C_{2} ^{20} (C_{2} ^{ } + C_{2} ^{2} + C_{2} ^{3} + C_{2} ^{4}) + C_{3} ^{20}

Answered by arianagrande123
0

Answer:

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Step-by-step explanation:

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