Algebra II Ms.Lanci Final Review Quizzes There are 10 weeks left of school. At the beginning of every week you will be handed a quiz paper with 5 practice final questions. They are due the Friday of that week. IF YOUR CLASS DROPS ON A FRIDAY, THE ASSIGNMENT WILL BE DUE ON THE THURSDAY. Each quiz will be worth 10 points, for a total of 100 points for the 4th quarter. This assignment is mean to help you; however failing to complete the quiz each week will give you a zero on a test for the 4th quarter. Quiz 2: Answer all questions on loose-leaf (with your name on it) This assignment is due______________________ 1. Simplify the complex fraction: 1 x 2x 2 5 x 2. Solve the following equation and express the roots in simplest a + bi form. x 2 4 x 5 0 3. Solve the following absolute value inequality and graph the solution set on the real number line: x 3 14 4. Factor the following expression completely: 5x 3 15x 2 50 . 5. Write in simplest form: 2 63 3 28 . Algebra II: Review Sheet Trigonometric Functions A) Find θ to the nearest second. 1.) tan θ = .7465 2.) cos θ = .5772 3.) sin θ = .3213 4.) tan θ = 1.2345 B) Find the value of x to 4 decimal places 1.) cos 504452 2.) sin 315221 3.) sec 53468 4.) tan 714633 C) Find x to the nearest tenth. (All angle measures in degrees/minutes/seconds) 1.) 2.) 3.) 4.) 5.) 5 x 9 12 x 9 17 x 20 16 63 12 x 25 6 D) Find sin θ, cos θ, tan θ, csc θ, sec θ, cot θ (Write the formulas) 1.) 2.) 5 √85 6 3 θ θ 4 7 E) Name the quadrant in which the terminal side of A lies. 1.) sin θ >0 and cot θ >0 2.) csc θ <0 and sec θ < 0 3.) cos θ <0 and sin θ >0 4.) tan θ <0 and sec θ <0 F) Solve for x. 1.) sin(x + 20) = cos(4x + 5) 2.) csc(2x – 8)=sec(4x + 38) 3.) tan 4x = cot 70 G) Write the following expressions as functions of acute angles whose measure is less than 45 . 1.) cos 78 2.) sec 125 3.) tan 256 4.) sin 280 H) Given the following points located on the unit circle, find sin θ, cos θ, tan θ, csc θ, sec θ, cot θ. 2 5 1.) (8, -15) 2.) ( 3 ,1) 3.) , 3 3 I) Sketch the angle and determine the quadrant in which the terminal side lies. 1.) 140 2.) 97 3.) 315 4.) 168 5.) 475 6.) 184 s r 1.) In a circle, the length of a radius is 4cm. Find the length of an arc intercepted by a central angle whose measure is 1.5 radians. J) The formula for finding the length of an arc is: 2.) In a circle, a central angle of 4.2 radians intercepts an arc whose length is 6.3 meters. Find the length of a radius in meters. 3.) If = 2.5 and r = 4, find s. 4.) If s = 12 and =6, find r. K) Change each angle from degrees to radians. 1.) 120 2.) 50 3.) 315 4.) 135 L) Change each angle from radians to degrees. 5 5 5 1.) 2.) 3.) 4 6 3 M) Complete the table below: θ 30 45 Radians 60 3 4.) 90 2 6 5.) 240 5.) 180 11 6 270 360 2 sin θ cos θ tan θ csc θ sec θ cot θ N) Express each function as a function of a positive acute angle. 4 11 17 1. cos 2. sin 3.csc 4. cot 190 3 4 15 O) Find the exact value of the function. 1. cos 315 2. sin 135 3. tan 120 6. cos 5 3 7. tan 3 4 8. sin 5. tan(-115) 4. cos 225 5. sin 240 9. tan 210 10. cos 120 6. sec 208