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Prove that 1/9!+1/10!+1/11!=122/11!

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Prove that 1/9!+1/10!+1/11!=122/11!
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Meghna Tyagi 8 years, 3 months ago

1/9!+1/10*9!+1/11*10*9! =11*10+11+1/11*10*9! =122/11! henceprove
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