Which of the following is an arithmetic sequence?
2 answers:
is equal to zero if. a) a, b, c are in arithmetic progression ... progression. d) α is a root of the equation ax2 + bx + c = 0.Missing: 4,
<h3>
Answer: Choice A) -4, -2, 0, 2</h3>
Explanation:
This is because we are adding the same thing to each term to get the next term. That is the common difference d = 2
- second term = (first term)+d = -4+2 = -2
- third term = (second term)+d = -2+2 = 0
- fourth term = (third term)+d = 0+2 = 2
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