Q1.
- (a) What is ω100 + ω200 + ω300 equal to, where ω is Let S be a set of all distinct numbers of the 5. 1. the cube root of unity? form (p)/(q), where p, q ∈ [1, 2, 3, 4, 5, 6]. What is the cardinality of the set S? \mathbfI (a) 21
- (b) 3 0 (b) 23 3ω^2
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(c)
32
(c) - (d) θ (d) 36 If c > 0 and 4a + c < 2b, then ax2 - bx + c = 0