12.07.2015 Views

XT - WISKUNDE Graad 12

XT - WISKUNDE Graad 12

XT - WISKUNDE Graad 12

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Vraag 15 verwys na die volgende sketsSkets 13: 1057Vraag 15: Cloze [8]Op hierdie skets: WT SUWU en UTis gelyke koorde.Wiskunde - LU 3 : AS 2Voltooi die volgende bewys dat SU'n raaklyn aan die sirkel is:PˆPˆ= Pˆ1 2= Wˆ2 2[rede: (Antw. 1)][rede: (Antw. 2)]∴ SUis 'n raaklyn. [rede: (Antw. 3)]1 23WU = UT UT onderspan gelyke ∠'e verw. ∠'e; WT || SUraaklyn-koord stellingWU onderspan gelyke ∠'eomgekeerde van raaklyn-koordstelling∆PWU ≡ ∆PTUPU is 'n middellyn15 Vrae, 10 BladsyeBladsy 10

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