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V6. Show that the following points form a equilateraltriangle A(a,0), B(-a,0), C(0,a (3) |
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Answer» AB=V(-a-a)^2+(0-0)^2=V(-2a)^2+0=2a_____________(1), Bc=(-a,0)(0,aV3)=V( 0-(-a)^2+( aV3)^2-0=a+3a^2=2a____(2), CA=(0, aV3)(a, 0)=Va^2+a^2(3)=2a______(3); 2a+2a+2a=equational triangles |
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