Math, asked by nikhil202, 1 year ago

show that (21)^n can never end with the digit zero when n is a natural no.

Answers

Answered by MayankSoni
1
Let power of 21 be 1
Then, ans is 21
If power of 21 be 2
Then, ans is 441
And so on because when we multiply 1 from 1 in one's digit, the answer always comes 1 in one's digit,
h





MayankSoni: Please not mention last line "h",it is by mistake and please mark as branliest
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