# What are all the values of n such that the square root of n times 2 is a perfect square?

2, 8, 18, 32, 50, 72...

### What are some of the irrational numbers?

Square root of 2, square root of 3, square root of 5... actually the square root of any number that is not a perfect square. Cubic root of 2, cubic root of 3... again, the cubic root of any number that is not a perfect cube. Pi (about 3.1416) e (about 2.718) Trigonometric functions, for most values of the domain Logarithm and antilogarithms, for most values of the domain Most expressions that include any of…