if 12!/(12-r)!= 1320 then, r is equal to :
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1
Answer:
what is the meaning of !
Answered by
2
Answer:
r=9
Step-by-step explanation:
If we start multiplying 12x11x10...at 10 we get product 1320 which means we have omitted 9! and taken only first three biggest factors out of 12.
Or 12-9=3
So r=9 ANSWER.
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