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If (R={(1,2),(2,1),(1,3),(3,1),(2,2)}), which pair is its own reverse?यदि (R={(1,2),(2,1),(1,3),(3,1),(2,2)}), तो कौन-सा युग्म अपना उलटा स्वयं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((2,2))((2,2))
Step 1: For a pair to be its own reverse, both entries must be equal. Step 2: In ((2,2)), both entries are equal. Step 3: Identifying diagonal pairs quickly helps in checking symmetry.चरण 1: अपना उलटा स्वयं होने के लिए दोनों घटक समान होने चाहिए। चरण 2: ((2,2)) में दोनों घटक समान हैं। चरण 3: विकर्ण युग्मों को जल्दी पहचानना सममितता जाँचने में मदद करता है।
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