When buying Brilliant T-shirts, Bradan determines that the total cost of buying shirts is given by the function If he wants to minimize the total cost of buying shirts, how many shirts should he buy?
Find the largest positive integer such that is a real number.
What will be the least value of the expression
Note :
As ranges over all pairs of real values, what is the smallest value of
How many positive integral value(s) of exist such that is a perfect square?