Answer Happy

Question 21 * For any angle 0, sinº 0 + cos20 A B) tan Not enough information. 1 D) 0

Question 22 If tan x = 1, then cotx= 1 T A) B) C) D) 0 Cannot be determined.

Question 23 * Simplify (-30%)? A) 9a6 B) -9a6 C) -90% D) 9a5

Question 24 26-3 Simplify a255 A) a762 B) 18 C) a 10 615 D) a38

Question 25 If f(x) = x² +5 and g(x) = then f(g(x)) = 22 A) + 25 B) + x2 +5 .22 C) 2 + 25 10% 10% D) + 5

Question 26 22-4 Solve 22 - 1 A) B C) D) I= -1,1 x = -2,2 x = 2 x= -2,2,-1,1

Question 27 If f(t) = +2 ++1, then f(t + h) = A) (t? +h2) + (t+h) +1 B) (t? +1) + (h2 +1) C) (t? ++ +1) + (h+h+1) D) (t + h)2 + (t+h)+1

Question 28 Which of the following is a factor of 922 – 16y2? A) (9.22 – 16y2) B) (3.42 – 4y?) C) (3.2 – 4y) D) (9.2 - 167)

Question 29 Which of the following cannot be true? A) B) C) D) cos<= 1 tan x = 0 sin 2 = 2 et = 100 -

Question 30 1 Which value of x is not in the domain of f(x) = ta T 0 A) B) C) D) 1 All real values of x are in the domain of f(x).

Question 31 1 1 For a, b > 0, which property is true? 1 A) Va+V6 ſat ſo B) Va+b= Va+VO + C) Vab= Vavb D) 16 - a = b - a