Using suitable identities evaluate the following. (Mention the identity used) a) (62) b) 97 x 103
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2: 97*103 = (100-3)(100+3) using identity (a+b)(a-b)=a^2-b^2
= (100)^2 - (3)^2
=10000-9
=9991
sry I don't know second answer
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Answer: hope it's helpful
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Step-by-step explanation: 2: 97*103 = (100-3)(100+3) using identity (a+b)(a-b)=a^2-b^2
= (100)^2 - (3)^2
=10000-9
=9991
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