Part A: Procedural Skill & Fluency 1. Find the roots of the function, and write the solution in factored form: f(x)=x4 + 5x - 36, if x = +3i is one root. Find a formula for the nth term of the sequence. Show your work. 2. 4, 7, 12, 19, 28, ... 3. Find n and an, if 5+7+9+ ... + an = 480 Find the sums of the given geometric series. Show your work. 4. 111 1+-+ +-+... 2 48 5. 5 213 () Use geometric series to find the rational number represented by the repeating decimal: .054. 7. Use mathematical induction to prove 3" 3n