1.

The unit place of (2013)2013 isa. 3C.b. 9d. 1

Answer»

Tricky approach

cyclicity of 3 is 42003^ 2003can be written as3 ^2003now divide 2003 by 4remainder will be 33^1= 3,3^2= 9 3^3= 27,3^4= 81that means 3^3= 277 is answer



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