3 years ago

What is the sum of the series 18 E n=4 (n+1) ^2? 1,239 2,415 2,440 2,469

Mathematics

2 answers:

Akimi4 [234]3 years ago

8 0

Answer:

Step-by-step explanation:

hope it helps u too

Leto [7]3 years ago

5 0

9514 1404 393

Answer:

Step-by-step explanation:

The sum of the squares of numbers 1 .. n is ...

s(n) = n(n +1)(2n +1)/6

You want the sum of squares from 5 to 19. We can compute that from ...

s(19) -s(4) = (19(20)(39) -4(5)(9))/6 = (14820 -180)/6 = 2440

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Step-by-step explanation:

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Step-by-step explanation:

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