t = 1.839 I don't get it can you explain further? I took the square root of (1.342t^2)^2+(6.040t)^2 and it gives me 6.19
if t = 1.839 t^2 = 3.382 t^4 = 11.437 20.536 + 123.381 143.9 sqrt of that = 12 close enouggh
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