[swordswinger12]

In the first equation involving pi - how can the sum of two positive numbers be zero?

[XaspR8d]

I believe he meant minus. For the purposes of linear independence, there is no significance of positive vs negative coefficients.

EDIT: Wow, go team.

[gphilip]

It cannot be. What the OP meant is π - 2(π/2) = 0

[dllthomas]

By the magic of typos.

[carstimon]

Thanks, edited.