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प्रश्न
Decide whether sets A and B are equal sets. Give reason for your answer.
A = Even prime numbers
उत्तर
Since, A = Even prime numbers
A = {2}
B = {x | 7x − 1 = 13}
7x − 1 = 13
7x = 13 + 1
7x = 14
x = `14/7`
x = 2
∴ B = {2}
A = B
Hence, A and B are equal sets.
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