1.

If [n!^2]/(n+1!)(n-1!)is 7/8; find n.....​

Answer»

Step-by-step explanation:

FACTORIAL of a positive number is the PRODUCT of all the positive NUMBERS LESS than the number and the number itself.

if 'n' is the number, the factorial is n*(n-1)*(n-2)*(n-3)*....*([n]-[n-1])

Its the product of the number itself (here, 'n') and all the numbers less than 'n' until 1(because if you multiply the whole thing with 0, there is no point of factorial and 0 is not a positive number)

Ok


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