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What is the largest value in the sequence generated by the formula an = –n2 + 6n – 7? A. 1 B. 2 C. 3 D. 4

What is the largest value in the sequence generated by the formula an = –n2 + 6n – 7? A. 1 B. 2 C. 3 D. 4
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4 votes
What is the largest value in the sequence generated by the formula an = –n2 + 6n – 7?

A. 1
B. 2
C. 3
D. 4

asked
User Yngwaz
by
8.6k points

2 Answers

4 votes

Answer:

B

Explanation:

answered
User Nafeo Alam
by
7.7k points
4 votes
Derive the equation and equate the derivative to zero.
dan/dt = -2n + 6 = 0
The value of n in the equation is 3. We substitute 3 to the original equation,
an = -(3)² + 6(3) - 7 = 2
The answer to this item is letter B.
answered
User Matthew Moss
by
8.5k points
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