The unit number in 7^65 x 6^41 x 3^57 :

(a) 7
(b) 6
(c) 3
(d) None

Anurag Mishra Professor Asked on 8th March 2016 in Maths.
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    Answer: (b) 6 

    Anurag Mishra Professor Answered on 13th March 2016.
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