what is an expression for 9
There are millions of them ... an infinite number of them, I think.Here are a few of them:9 x 1(3)²(-3)²(4 + 5)3 x 3(8 + 1)√81(11 - 2)(-√3)⁴7 sin(90°) - 2 cos(180°)(27 seconds) / (3 Hz)(999 - 990)