1 Sample question. (20) Simplify: 27 4 18 4 Ans: 3 2 V1.1 (40) Find the triple (x, y, z) so that x + 2y - z = 4 x - 4y + z = 2 x +2y =0 Ans: (2,-1,-4) V1.2. (30) The universe is {1, 2, 3, 4, 5, 6, 7, 8, 9}. A = {1, 2, 3, 4, 5}. B = {2, 4, 6, 8}. Find: ( A ' B ') ' Ans: {2,4} V1.3 (30) We define a binary operation by x * y 2 x y . Solve: 4*(x*4) = 6. V1.4 (30) Give the equations of all asymptotes to the graph: y Ans: x = 3 2 x2 5 x2 x 2 Ans: x = -2, x = 1, y = 2 V1.5 (15) Give, in interval notation, the range of the function f ( x) x3 3x 5 Ans: (, ) V1.6 (40) Find the coefficient of a 2 b 2 in the expansion of (a b)4 Ans: 6 V1.7. (30) Find the y-coordinate of the vertex of the parabola y x 2 4 x 2 Ans: -2 V1.8 (30) f ( x) 2 x 3 g ( x) x 1 Ans: 4x +3 V1.9 (30) Calculate k 20 k 1 Find: f ( g ( f ( g ( x)))) (2k 1) Ans: 400 V1.10 (30) (-2,0) and (2,0) are the end points of the hypotenuse of a right triangle. Give, in standard form, the equation of the locus of points for the third vertex.: Ans: x 2 y 2 4 V1.11 (30) I roll two dice. What is the probability their product is 4? Ans: 1/12 V1.12 (45) Find all solutions in [0, ) of tan cot Ans: 3 4 , 4 2 V2.1. (40) How many different ways are there to arrange the letters {a, b, c, d, e} in order so there are no two consecutive consonants. Ans: 12 V2.2. (40) Solve for x: ( 2x 2 2x ) 2( ) 1 0 3x 2 3x 2 V2.3 (30) What is the range of the function V2.4 (30) Solve for x: V2.5 (30) Simplify x 3 x 10 Ans: 2 f ( x) x 4 4 x 2 ? Ans: [4, ) 7 Ans: 19 log 2 27 log 2 9 Ans: 3/2 V2.6 (40) If (3a 2b)4 is multiplied out, what is the coefficient of a 2 b 2 ? Ans: 216 V2.7 (30) Solve for x: log3 ( x 1) log3 ( x 1) 3 Ans: 14/13 V2.8 (40) cos 36o 5 1 . Write sin180 in radical form. 4 x2 V2.9 (20) What is the area inside the ellipse: y 2 1 ? 4 Ans: 5 1 or 4 3 5 8 Ans 2 V2.10 (30) If I roll two dice, what is the probability the product of the numbers is even? Ans: 3/4 V2.11 (30) sin 3 / 5, / 2 . What is tan 2 ? Ans -24/7 V2.12. (30) Simplify 4log2 7 Ans: 49 3 V3.1 (40) The numbers x, y, and z are in ratio 2 to 3 to 4. Their product is 3. What is x? Ans: 1 V3.2 (40) If we multiply out the polynomial (x-1)(x-2)(x-3)(x-4) then what is the coefficient of x3? Ans: -10 V3.3 (40) 2x 1 x 3x 2 2 2 V3.4 (20) an an 1 3 A x2 B . What is A? x 1 a0 8 . What is a3 ? Ans: 3 Ans: 27 V3.5 (40) If i 2 1 then find in simplified form (1 i)8 Ans 16 V3.6 (30) Find the determinant: 2 1 1 1 4 2 Ans: 0 6 3 3 V3.7 (30) Perform the base five division: 4004 five /13 five ???? five V3.8. (30) Find the sum of the binomial coefficients: Ans: 223 or 223 five 4 4 4 4 4 0 1 2 3 4 V3.9. (30) Solve, giving your answer in interval form, | |x - 1| - 2| < 3 Ans: 16 Ans: (-4,6) V3.10. (40) I draw 3 cards at random from an ordinary deck. What is the probability (in lowest terms) that all three are red? Ans: 2/17 V3.11 (30) A triangle has angles 300 , 450 , and 1050 . The second longest side has length What is the length of the shortest side? Ans: 1 x10 x 2 x V3.12. (20) Find the limit: lim Ans: 0 2. 4 V4.1 (30) f ( x) 3x 8 g ( x) 2 x 1 Find f 1 ( g 1 (3)) Ans: -2 V4.2. (30) If we multiply out the polynomial (x+1)(x+2)(x+3)(x+4) then what is the coefficient of x? Ans: 50 V4.3 (40) Two sides of a triangle have lengths 2 and 3. The angle between them is / 3 . What is the length of the third side? Ans 7 V4.4. (40) b? Ans: 1 3 2 2 can be written in the form a b 2 where a and b are integers. What is V4.5 (30) i 2 1 . Write ( 3 i ) 6 in simplest form Ans: -64 4 4 4 4 4 V4.6 (30) Find: 0 1 2 3 4 Ans: 0 V4.7 (40) Give, in interval notation, the range of the function f ( ) sin cos ? Ans [ 2, 2] V4.8 (30) Three of the roots of f ( x) x 4 ax3 bx 2 cx 12 are 1, -1, and 2. What is the fourth root? Ans: -6 1 1 V4.9 (40) Find the inverse matrix of: 1 2 2 1 Ans: 1 1 V4.10. (30) Give the mathematicians A , B, C, and D in correct historical order. A. Hilbert B. Gauss C. Euclid D. Fermat Ans: C D B A V4.11 (40) f ( x ) 3x 2 x 1 What is f '(2) ? Ans: -5 V4.12 (30) What is the name for the set of functions which, for all a, satisfy, lim f ( x) f (a) ? x a Ans: continuous or continuous functions or everywhere continuous functions