Verified by Ajay Kumar
What is the square of 129?
16541
16641
16741
16841
Answer: B
Solution
Using \((a-b)^2 = a^2 - 2ab + b^2\), \(129^2 = (130-1)^2 = 16900 - 260 + 1 = 16641\).
129 का वर्ग क्या है?
16541
16641
16741
16841
उत्तर: B
हल
सूत्र \((a-b)^2 = a^2 - 2ab + b^2\) से, \(129^2 = (130-1)^2 = 16900 - 260 + 1 = 16641\)।
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