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Math 150 – Fall 2015 Final Exam Review 1 of 3 Final Exam Examples This is not a comprehensive review; just a few extra examples. Example 1. Fully simplify cos sin−1 −4 + tan−1 56 . 7 Example 2. Write functions of the fom f (x) = a sin k(x−a)+b and f (x) = a cos k(x− a) + b, where a, k, and b are positive and as small as possible. Example 3. Find the points that solve the system of equations below. Give your answer as the SUM of the x-values of the solutions. 4y + (x − 2)2 = 9 (x − 2)2 + y 2 = 5 Math 150 – Fall 2015 Final Exam Review 2 of 3 Example 4. Determine the center and radius of the circle 2x2 + 2y 2 − 6x + 12y − 7 = 0. Example 5. Algebraically calculate and simplify the inverse of the function f (x) = 5(1 − 3x)2 + 4, where x ∈ (−∞, 31 ]. Example 6. For the number z = 2i + 3, calculate |z| · (5 − 3i) · z. Math 150 – Fall 2015 Final Exam Review 3 of 3 Example 7. Solve the inequality and express your answer in interval notation. x2 +10 x+5 ≤ 2 Example 8. In the real numbers, fully simplify the expression p 6 128x2 y 1 8z 7 . Example 9. Find the difference quotient of f (x) = −3x2 + x and fully simplify your answer. Example 10. Solve the equation 4x2 − 5x − 2 = 0 over the complex numbers.