Sides of triangle are a= p^2+p+1, b=p^2+2p, c=2p+1. Calculate medium size angle.
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If p is not equal to 1, side A ($\displaystyle p^2+p+1$). Simply substitute a number such as 10 for p. Also, please use the [tex] tag for formulas.
It can be equal to 1. It's not so simple i used law of cosines to find angle α which is pi/3 but i don't know how to calculate β and γ.
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