ICSE Class 9 Answered
Use identities to evaluate
(i)(101)²
Asked by navkirankaurrehal23 | 27 Apr, 2021, 11:19: AM
Expert Answer
Here, 101 = 100 + 1
The identity to be used is: (a+b)2 = a2 + b2 + 2ab
Therefore, we have
(101)2 = (110 + 1)2 = 1002 + 12 + 2(100)(1)
= 10000 + 1 + 200
= 10201
Answered by Renu Varma | 27 Apr, 2021, 11:31: AM
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