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Find the square of the following numbers using the duplex method.


73

  • a)
    5484

  • b)
    5329

  • c)
    5284

  • d)
    5184 

Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Find the square of the following numbers using the duplex method.73a)5...
Splitting the number 73 into its tens and units place digits, we have 7 and 3. Calculating the cross product and the square of each digit:
Cross product: 7 * 3 = 21
Square of 7: 72 = 49
Square of 3: 32 = 9
Combining the results, we get 4909, which is the square of 73. Among the options, (b) 5184 is the closest match to 4909.
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Community Answer
Find the square of the following numbers using the duplex method.73a)5...
Split the number 73 into its tens and units digits: 7 and 3. Step 5: The square of 73 is 5329. Therefore, the correct answer is option 'B' which is 5184.
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