In how many 6 digit numbers can be formed using the digits 1 to 5(repetitions allowed) such that the number reads the same from left to right or from right to left(e.g. 134431)?
a)5^6 b)5^3 c)5^2 d)5^10
Sometimes it is useful to know how large your zero is.
Unknown
Mathematics has 25%formulas, 25%proofs and apply 25%thinking and 25%efforts.
In real life situations proofs are nothing but already existed stories(we know the solutions from all experienced people).
formulas are nothing but goals. we have so many goals b