½a^2 +⅓a^2+1/6a^2-2a^2 na teraz prosze
1/2 a² + 1/3 a² + 1/6 a² - 2a² = 3/6 a² + 2/6 a²+ 1/6a² - 2a² = 1a² - 2a² = -a²
3/6+2/6+1/6-2=-1
odp -a^2
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1/2 a² + 1/3 a² + 1/6 a² - 2a² = 3/6 a² + 2/6 a²+ 1/6a² - 2a² = 1a² - 2a² = -a²
3/6+2/6+1/6-2=-1
odp -a^2