1. If the product of the numbers a and b is 72000, and the product of the uncommon prime factors is 20, find lem (a, b) A) 3600 B) 60 C) 30 D) 40 E) 1200 2. Find the constant term of the polynomial (2x3 + 3)2 . (3x2 + 1)3 A) 10 B)9 0)6 D)8 E)4 3. If in geometric sequence by = 3, by = 6 find the ratio of $12:56 A) 69 B) 63 C) 67 D) 61 E) 65 4. If the midsegment of the trapezoid is 16 cm and the ratio of bases is 3: 5, find the small base of the trapezoid. A) 12 cm B) 10 cm C) 9 em D) 15 cm E) 8 cm 5. Which of the expressions have a positive value I cos 1.5 II. cos 154 III. cos 3.7 IV. cos 900" V. cos 259' A) II, IV B) only IV C only I D) IV, V E) only III 6. Find the extremum of the following function f(x) =-x2 -2x+12 A) 0.4 B) 10 C)0.1 D) 4 E) 12 7. Find the probability that the random solution of the equation x3 + x2 - 2x = 0 is a natural number. D)= E) 1 8. Given the vectors a(4; -1) and b(-2; 5), find the components of the vector 2d - 3b. A) (14; 17) B) (-14; -17) C) (14; -17) D) (-14; 17) E) (17; -14) 9. Find the degree of an angle a A) 140 B) 120 C) 130' D) 100' E) 150 10. Find the number of integer solutions of the following inequality 12x - 5|