Trig/Algebra/Pre-Calc Review help solve these by Sunday night

User Generated

wgy001

Mathematics

Description

This is a algegra, precalc and tri review. I have the answers provided by the teacher. But I need to study HOW to solve these problems and it's taking forever just to figure out what to look for to study and try to solve because I don't remember. So instead of studying, i'm wasting time trying to figure out how to study. Attached is the questions and answers sheet. 

I need someone to provide step by step with explanation of how to solve 9-20 please. Details matter as I will need to study this for test. It would also be helpful if you could include the type of problem it is....for example #8 I think is solving quadratic inequalities but i don't know.


Only need help with 9-20

(here are questions / answers )

Unformatted Attachment Preview

MAC 2311 Calculus I Algebra/ Trig/ Pre-Calc Review 1. Factor, 2. Factor, 3. Solve, 4. Simplify, 5. Simplify, 6. Simplify, 7. Find an equation of the line passing through the points 8. Solve, 9. Solve, 10. Expand, 11. Find the domain and range of the function 12. Find the domain and range of the function 13. Find the domain and range of the function 14. Given: Find: 15. Given: Find: 16. Given: Find: 17. Solve, 18. Find the exact value of each of the following 19. Evaluate each expression 20. Sketch a graph of the given function. Find the domain and range. Identify the x-intercept and yintercept. State the vertical and horizontal asymptotes. Solutions to Algebra/Trig Review 1) (x − 1)(x2 − 3) 2) (2y + 3)(7y − 4) 3) z = 2, z = −1/3 4) −2 x(x + h) 5) √ −1 √ √ √ x + h x( x + h + x) 6) 9x − 7 (3 − x)(3 + x)(x + 1) 7) y = x + 4 8) [−2, 3] ∪ (6, ∞) √ 9) (−∞, 2 − 2 ) 2 √ ∪ (2 + 2 , ∞) 2 10) 8x3 + 36x2 y + 54xy 2 + 27y 3 11) Domain (−∞, −10] ∪ [10, ∞); Range (−∞, 0] 12) Domain (−∞, ∞); Range (−∞, 2) 1 13) Domain (3, ∞); Range (−∞, ∞) 14)a = 13 15) 2b2 − 15b + 34 16)f (g(x)) = 3x2 + 8x + 9 ; g(f (x)) = 3x2 − 4x + 7 17) x = 2 ln(19/4) 18) cos(2π/3) = −1/2 √ tan(−7π/3) = − 3 csc(−11π/6) = 2 sin(−5π/6) = −1/2 √ sec(23π/6) = 2 3/3 cos(−13π)/6) = √ 3/2 √ arccos( 3/2) = π/6 √ arcsin( 2/2) = π/4 19) cos(arctan(3/4)) = 4/5 tan(arccos(3/5)) = 4/3 √ sec(arcsin(1/4)) = 4/ 15 20) x intercept: (−1/4, 0); y intercept: (0, −1/6); V.A. at x = 3, x = −2; H.A. at y = 0; Domain (−∞, −2) ∪ (−2, 3) ∪ (3, ∞); Range (−∞, ∞) 2
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Anonymous
Very useful material for studying!

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