Math, asked by Arshia9569, 10 months ago

n
∑ ⁿPʳ/r! is equal to
ʳ ⁼ 1
(a) 2ⁿ (b) 2ⁿ - 1 (c) 2ⁿ - 1 (d) 2ⁿ + 1

Answers

Answered by kittu34538

1

Answer:

option D............

Answered by riddhi2692

1

Answer:

option d)...........................

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