1.

The units digit in the square of 431 is ………………… A) 3 B) 7 C) 0 D) 1

Answer»

Correct option is  D) 1

Correct option is (D) 1

\(\because\) Unit's digit in 431 = 1

\(\therefore\) Unit's digit in \((431)^2=1.\) \((\because\) Cyclicity of 1 is 1)



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