please answer clear. and give me the answer step by step.
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Answer:
11 x 11=121
101 x 101=10201
10101 x 10101=102030201
1010101 x 1010101=1020304030201
101010101 x 101010101=10203040504030201
Step-by-step explanation:
this is basically a trick. as you increase the number if zeros with ones you go on adding the upcoming digit with alternate zero. you can cross check by actually performing the multiplication.
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