1.

1112 = ………………….. A) 12341 B) 12321 C) 12312 D) 12221

Answer»

Correct option is  B) 12321

Correct option is (B) 12321

\(111^2=(100+11)^2\) \(=100^2+2\times100\times11+11^2\)

= 10000 + 2200 + 121

= 12321.



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