Prompt

HƯỚNG DẪN LÀM BÀI 3 3. Liệt kê các phần tử của tập hợp 1) A = {x ∈ ¢ / -5 < x < -1} Answer: 2) C = {a ∈ ¢ / -4 < a < -1} Answer: 3) E = {c ∈ ¢ / -3 < c < 0} Answer: 4) H = {x ∈ ¢ / -7 < x < -2} Answer: 5) K = {a ∈ ¢ / -6 < a < 0} Answer: 6) N = {x ∈ ¢ / -6 < x ≤ -2} Answer: 7) Q = {x ∈ ¢ / -6 ≤ x < 0} Answer: 8) U = {x ∈ ¢ / -5 < x < 3} Answer: 9) B = {y ∈ ¢ / -3 < y < 3} Answer: 10) D = {b ∈ ¢ / -2 < b < 3} Answer: 11) G = {d ∈ ¢ / -1 < d < 6} Answer: 12) I = {y ∈ ¢ / -4 < y ≤ 2} Answer: 13) M = {b ∈ ¢ / -2 < b < 7} Answer: 14) P = {x ∈ ¢ / -3 ≤ x < 0} Answer: 15) T = {x ∈ ¢ / -3 ≤ x < 2} Answer: 16) L = {x ∈ ¢ / -3 ≤ x < 3} Answer: