evaluate using suitable identity

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Answered by
2
Answer:
hope it will help you:-)
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Answered by
0
Answer:
9801
Step-by-step explanation:
99^2
= (100 - 1)^2
=> (a - b) ^2 = a^2 + b^2 - 2ab
= 100^2 + 1^2 - 2×100×1
= 10000 + 1 - 200
= 9801
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