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Example 3: Find x if 1/9 ! + 1/10! x/11!

Answer»

1/9! + 1/10! = x/11!(10 + 1)/10! = x/11!11/10! = x/11!11/10! = x/11*10!x = 11*11*10!/10!x = 121

Value of x = 121



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