Q. What kind of sequence is this?89,178,356,712,…Choices:(A) arithmetic(B) geometric(C) both(D) neither
Check Arithmetic Differences: Let's first check if the sequence is arithmetic by finding the differences between consecutive terms. Given sequence: 89,178,356,712,…Calculate the differences: 178−89,356−178,712−356.
Calculate Differences: Perform the calculations: 178−89=89, 356−178=178, 712−356=356.Check if the differences are equal: 89, 178, 356.The differences are not equal, so the sequence is not arithmetic.
Check Equal Differences: Now, let's check if the sequence is geometric by finding the ratios between consecutive terms. Given sequence: 89,178,356,712,…Calculate the ratios: 89178,178356,356712.
Check Geometric Ratios: Perform the calculations: 89178=2, 178356=2, 356712=2.Check if the ratios are equal: 2, 2, 2.The ratios are equal, so the sequence is geometric.
Calculate Ratios: Since the sequence is not arithmetic but has a common ratio, it is a geometric sequence.
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