Q. What kind of sequence is this?86,104,122,140,…Choices:(A) arithmetic(B) geometric(C) both(D) neither
Verify Consecutive Differences: Let's verify if the differences between consecutive terms are uniform. Given sequence: 86,104,122,140,…Are the consecutive differences in the sequence equal? 104−86=18, 122−104=18, 140−122=18.The consecutive differences in the sequence are equal.
Identify Arithmetic Sequence: Since the consecutive differences are equal, this indicates that the sequence is an arithmetic sequence. An arithmetic sequence is defined by having a common difference between consecutive terms.
Check for Geometric Sequence: Now, let's check if the sequence could also be geometric by finding the ratios between consecutive terms. 86104 does not equal 104122, and neither equals 122140. Therefore, the sequence does not have a common ratio.
Final Conclusion: Since the sequence has a common difference but not a common ratio, it is an arithmetic sequence and not a geometric sequence.
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