Question: Please solve this as soon as possible. Write the correct answer. (a) Consider the sequence: 2, -6, 18, -54,.... What type of sequence is this?

Please solve this as soon as possible. Write the correct answer.

(a) Consider the sequence: 2, -6, 18, -54,.... What type of sequence is this? Identify the corresnponding the parameters. What would be the 15th term of the sequence? Calculate the sum of the first 15 terms of the given sequence. (b) Assume f: N N and g: ZN are two functions with f(x) = 3x + 2 and g(x) = 22 +1. Comment on f-1 =?, 9-1 =? and fog=? (c) Suppose you have to answer 9 questions in CSE173 exam, choosing at least 3 questions from each of the set A and B. Assume that, there are 7 questions in part A and 8 questions in part B. What would be the number of possible choices of 9 questions for you in CSE173 exam. Show your work, direct answers are unacceptable

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