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प्रश्न
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(9.4)2
योग
उत्तर
(9.4)2 = (10 − 0.6)2
= (10)2 + (0.6)2 − 2 (10) (0.6)
= 100 + 0.36 − 12
= 88 + 0.36
= 88.36
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