Aria perimetrul paralelogramului | AniDeȘcoală.ro
ABCD is a parallelogram Fig. 2 (c ) .64. AC and (BD) are its diagonals. Show that (a) vec (AC) +vec (BD) =2 vec (BC) (b) vec (AC) - vec (BD) =2 vec (AB) .
Paralelograme | PDF
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Example 11 - Show that A (1, 2, 3), B (-1, -2, -1), C (2, 3, 2)
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Example 11 - Show that A (1, 2, 3), B (-1, -2, -1), C (2, 3, 2)
Paralelogramul. Proprietăți
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