1) which of the following is a statement a) −2 > −1 b) 2x c) x < 1 d) 2y + 3 2) given the statement p is ‘4% = 0.04’ and statement q is ‘47 = 4.7 × 10’, which of the following is true? a) ~p and ~q b) p and ~q c) p and q d) ~p and q 3) Premise 1: all octagons have 8. Premise 2: ABCDEFGH is an octagon. Conclusion:______________ a) An octagon has 8 sides. b) ABCDEFGH has 8 sides. c) ABCDEFGH is an octagon with 8 sides. d) An octagon is a polygon. 4) if X² = 64, then X = 8. what is the inverse of the implication?  a) If X² ≠ 64, then X ≠ 8. b) If X = 8, then X² = 64 c) If X ≠ 8, then X² ≠ 64 5) make a general conclusion by induction for the sequence of numbers 3, 10, 21... which follows the pattern a) 2 (n)2 + n2 , n = 1, 2, 3,... b) 2 (n) + n , n = 1, 2, 3,... c) (2n)2 + n , n = 1, 2, 3,... d) 2 (n)2 + n , n = 1, 2, 3,... 6) which of the following compound statement is true? a) -3 > 1 or 2 is not a prime number b) 5 + 5 = 25 or 5 - (-5) < 15 c) y x y = y² and 6 is a factor of 9

PBL MATHS CHAPTER 3

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