oooooo

S=1/1×2×3+12×3×4+…+1/(n)(n+1)(n+2) +…+1/14×(14+1)×(14+2)=a/b, where a and b are positive, coprime integers. What is the value of a+b?

Note by Abhyudaya Agrawal
8 years, 4 months ago

1 vote

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Comments

You are not supposed to ask this week's question in the discussion

A Former Brilliant Member - 8 years, 4 months ago

This site is for you to work problems yourself. Asking others will be cheating and earning points.

A Former Brilliant Member - 8 years, 4 months ago

the answer is x/y where x/y=1/1×2×3+12×3×4+…+1/(n)(n+1)(n+2) +…+1/14×(14+1)×(14+2)

Sri Venkata Vivek Dhulipala - 8 years, 4 months ago

The answer is x+yx + y, where x⊥yx \perp y.

Zi Song Yeoh - 8 years, 4 months ago

abudhaya have common sense

Sri Venkata Vivek Dhulipala - 8 years, 4 months ago

will any body answer your question i have no hopes

Sri Venkata Vivek Dhulipala - 8 years, 4 months ago

you abhyudaya A. posted many times .your one of the posts has blocked

Sri Venkata Vivek Dhulipala - 8 years, 4 months ago

why

Abhyudaya Agrawal - 8 years, 4 months ago

sorry

Abhyudaya Agrawal - 8 years, 4 months ago
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