Matematika Dú
Odpovědi
Diskuze
sjednocení: AUB = (-∞,+∞)
průnik: A∩B =<2>
3) a^3 - b^3 = (a-b)*(a^2+a*b+b^2)
t^3 - 729 = t^3 - 9^3 = (t-9)*(t^2+t*9+9^2)
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?=(2π)*3/8 = 6π/8=3/4 π
135° ~ 3/4π rad
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7)LaTex: [graph]y=x^3/10[/graph]
http://forum.matematika.cz/viewtopic.php?pid=405550#p405550
http://www.wolframalpha.com/input/?i=y%3Dx%5E3%2F10
8) y=|x^3|
http://www.wolframalpha.com/input/?i=y%3D%7Cx%5E3%7C
9) y=x^3/4 + 1,3
http://www.wolframalpha.com/input/?i=y%3Dx%5E3%2F4+%2B+1%2C3