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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

If A = {b, c, e, g, h}, B = {a, c, d, g, f}, and C = {a, d, e, g, h}, then show that A – (B ∩ C) = (A – B) ∪ (A – C) - Mathematics

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प्रश्न

If A = {b, c, e, g, h}, B = {a, c, d, g, i}, and C = {a, d, e, g, h}, then show that A – (B ∩ C) = (A – B) ∪ (A – C)

योग

उत्तर

A = {b, c, e, g, h}

B = {a, c, d, g, i}

C = {a, d, e, g, h}

B ∩ C = {a, c, d, g, i} ∩ {a, d, e, g, h}

= {a, d, g}

A – (B ∩ C) = {b, c, e, g, h} – {a, d, g}

= {b, c, e, h}  ...(1)

A – B = {b, c, e, g, h} – {a, c, d, g, i}

= {b, e, h}

A – C = {b, c, e, g, h} – {a, d, e, g, h}

= {b, c}

(A – B) ∪ (A – C) = {b, e, h} ∪ {b, c}

= {b, c, e, h)  ...(2)

From (1) and (2) we get

A – (B ∩ C) = (A – B) ∪ (A – C)

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अध्याय 1: Set Language - Exercise 1.5 [पृष्ठ २८]

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सामाचीर कलवी Mathematics [English] Class 9 TN Board
अध्याय 1 Set Language
Exercise 1.5 | Q 5 | पृष्ठ २८
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