Find a formula a, for the n-th term of the following sequence. Assume the series begins at n = 1. 1 1 1 1' 4'9 Use symbolic notation and fractions where needed.) an = Find a formula b, for the n-th term of the following sequence. Assume the series begins at n = 1.

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Q: how did you get the final answer??

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Q: 2 cos x = -0.7, 2TT ≤ x < 4T csc x = 2, 0 < x < 2TT sec x = -3, -π ≤ x < T 4

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