n
∑ ⁿPʳ/r! is equal to
ʳ ⁼ 1
(a) 2ⁿ (b) 2ⁿ - 1 (c) 2ⁿ - 1 (d) 2ⁿ + 1
Answers
Answered by
1
Answer:
option D............
Answered by
1
Answer:
option d)...........................
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