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SSC MATH NATIONAL CURRICULUM

📘 SSC-05 Gen. Math (Algebra) – Set Theory Rules & Examples

Rule No./Topics:Examples / Questions
Rule 1
āϤāĻžāϞāĻŋāĻ•āĻž āĻĒāĻĻā§āϧāϤāĻŋ (Roster Form)
(i) {x∈N : x² > 15 āĻāĻŦāĻ‚ x² < 100}
(ii) {x∈N : x, 36 āĻāϰ āϗ⧁āĻŖāύ⧀āϝāĻŧāĻ• āĻāĻŦāĻ‚ 6 āĻāϰ āϗ⧁āĻŖāĻŋāϤāĻ•}
(iii) {x∈N : x < 10 āĻāĻŦāĻ‚ āĻœā§‹āĻĄāĻŧ āϏāĻ‚āĻ–ā§āϝāĻž}
Rule 2
āϏ⧇āϟ āĻ—āĻ āύ āĻĒāĻĻā§āϧāϤāĻŋ (Set Builder Form)
(i) {3, 5, 7, 9, 11}
(ii) {Âą4, Âą5, Âą6}
(iii) {4, 8, 12, 16, 20, 24}
Rule 3
āĻĒā§āϰāĻŽāĻžāĻŖ āĻ•āϰ (Proof)
(i) U={1,2,3,4,5,6}, A={2,4,6}, B={2,4,6} āĻšāϞ⧇ (AâˆĒB) = A∊B
(ii) A={2,4,6}, B={2,4,6}, C={2,3,4,5} āĻšāϞ⧇ (AâˆĒB) = (A−B)âˆĒ(B−A)âˆĒ(A∊B)
(iii) A={1,2,3}, B={2,4,6}, C={1,4,7} āĻšāϞ⧇ (AâˆĒB)âˆĒC = AâˆĒ(BâˆĒC)
Rule 4
Power Set
(i) A = {a, b, c, d} → P(A) āĻāϰ āωāĻĒāĻžāĻĻāĻžāύ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ? āĻĻ⧇āĻ–āĻžāĻ“ āϝ⧇ A āĻāϰ āωāĻĒāĻžāĻĻāĻžāύ āϏāĻ‚āĻ–ā§āϝāĻž n āĻšāϞ⧇ P(A) = 2âŋ
(ii) A = {1, 2, 3} → P(A) āĻāϰ āωāĻĒāĻžāĻĻāĻžāύ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
Rule 5
āĻ•ā§āϰāĻŽāĻœā§‹āĻĄāĻŧ (Ordered Pair)
(i) (x−1, y+2) = (y−2, 2x+1), find x, y
(ii) (ax−cy, a²−c²) = (0, ay−cx), find x, y
(iii) (6x−y, 13) = (1, 3x+2y), find x, y
Rule 6
āĻ•āĻžāĻ°ā§āϤ⧇āϏ⧀āϝāĻŧ āϗ⧁āĻŖāϜ (Cartesian Product)
(i) A = {3,4,5}, B = {4,5,6}, C = {x,y} → (A∊B) × C = ?
(ii) P = {3,5,7}, Q = {5,7}, R ⊆ Q → (PâˆĒQ) × R = ?
(iii) A = {a,b}, B = {2,3}, C = {3,4} → A×(BâˆĒC), A×(B∊C) āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
Rule 7
āϰāĻžāĻļāĻŋ āĻĨ⧇āϕ⧇ āϏ⧇āϟ āύāĻŋāĻ°ā§āĻŖāϝāĻŧ
(i) 311 āĻ“ 419 āϕ⧇ āĻ­āĻžāĻ— āĻ•āϰāϞ⧇ āĻĒā§āϰāϤāĻŋāĻŦāĻžāϰ 23 āĻ…āĻŦāĻļāĻŋāĻˇā§āϟ āĻĨāĻžāϕ⧇ āĻāĻŽāύ āĻ¸ā§āĻŦāĻžāĻ­āĻžāĻŦāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻžāϗ⧁āϞ⧋āϰ āϏ⧇āϟ
(ii) 346 āĻ“ 556 āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ āĻ…āĻŦāĻļāĻŋāĻˇā§āϟ 31 āĻšāϞ⧇?
(iii) A = 315 āĻ“ B = 525 āĻāϰ āϏāĻ•āϞ āĻ‰ā§ŽāĻĒāĻžāĻĻāĻ• āύāĻŋāĻ°ā§āĻŖāϝāĻŧ
Rule 8
āϭ⧇āύāϚāĻŋāĻ¤ā§āϰ (Venn Diagram)
(i) 80% āĻ—āĻŖāĻŋāϤ āĻ“ 70% āĻŦāĻžāĻ‚āϞāĻž, āωāĻ­āϝāĻŧ⧇ 60% āĻĒāĻžāĻļ → āωāĻ­āϝāĻŧ āĻŦāĻŋāώāϝāĻŧ⧇ āĻ•āϤ % āĻĢ⧇āϞ āĻ•āϰāϞ?
(ii) 100 āϜāύ⧇ 92 āĻŦāĻžāĻ‚āϞāĻžāϝāĻŧ, 40 āĻ—āĻŖāĻŋāϤ⧇ āĻĢ⧇āϞ, 70 āϜāύ āωāĻ­āϝāĻŧ⧇ āĻĢ⧇āϞ → āωāĻ­āϝāĻŧ āĻŦāĻŋāώāϝāĻŧ⧇ āĻ•āϤāϜāύ āĻĢ⧇āϞ āĻ•āϰ⧇āϛ⧇?
(iii) 30 āϜāύ⧇ 20 āĻĢ⧁āϟāĻŦāϞ, 15 āĻ•ā§āϰāĻŋāϕ⧇āϟ, 10 āϝ⧇āϕ⧋āύ⧋ āĻāĻ•āϟāĻŋāϤ⧇ → āĻ•āϤāϜāύ āĻ•āĻŋāϛ⧁āχ āĻĒāĻ›āĻ¨ā§āĻĻ āĻ•āϰ⧇ āύāĻž? āϭ⧇āύāϚāĻŋāĻ¤ā§āϰ āĻĻāĻŋāϝāĻŧ⧇ āĻĻ⧇āĻ–āĻžāĻ“
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