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Ganezh [65]
3 years ago
12

Find the sum of the first 10 terms if a(n) = n^2 - n +1

Mathematics
1 answer:
Elza [17]3 years ago
3 0

Answer:

The formula to find the sum of the first n terms of our sequence is n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1. The n stands for the number of terms we are adding together.

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3 years ago
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8_murik_8 [283]
Part A

The expression "ma" is the same as "m*a" (m times a). To isolate 'a', we divide both sides by m. Division is the inverse operation of multiplication. Think of it as undoing multiplication

F = ma
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Note: the slash "/" without quotes means "divide"

===========================================
Part B

Use the result from part A. We will plug F = -24 and m = 10 into that equation

a = F/m
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Answer: -2.4

===========================================
Part C

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