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
Calculus is the most powerful weapon of thought yet devised by the wit of man.
W. B. Smith
mathematics never dies because it always stays in the minds and souls of people who love mathematics.
Those people will not let maths die instead they will die.................