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प्रश्न
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
बेरीज
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उत्तर
(188)2 = (200 − 12)2
= (200)2 + (12)2 − 2(200) (12)
= 40000 + 144 − 4800
= 40144 − 4800
= 35344
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