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Wiskunde V2

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<strong>Wiskunde</strong>/<strong>V2</strong> 7 DBE/Feb.–Mrt. 2012NSS – Memorandum5.5.13m AD= −2A(1 ; 4) tan β = m AD3tan β = −2B(–3 ; 1) α β 123,69°β = 180° − 56,31°β = 123,69EFD(5 ; –2)5.5.2m BD− 2 −1− 3= =5 − ( −3)83tanα= −8α = 180° − 20,56°α = 159,44°FED ˆ = 180° −159,44°= 20,56°EFD ˆ = 123,69°FDE ˆ = 180° − (20,56° + 123,69°) = 35,75° mBD159,44°− 3=820,56°123,69°35,75°(2)(5)5.6 Koördinate van middelpunt M (3 ; 1)Radius van sirkel:1 1 1of AD = (2 13 ) = 13 = 522 2 222Vergelyking van die sirkel is: ( x − 3) + ( y −1) = 13222r = (3 −1)+ (1 − 4) = 13Vergelyking van die sirkel is:22x − 3 + y −113( ) ( ) =OF5.7 M(3 ; 1) B(– 3 ; 1)22MB = ( 3 + 3) + ( 1−1))MB = 6Punt B lê buite die sirkel want MB > radiusOFM(3 ; 1) B(– 3 ; 1)MB = 3 + 3 = 6Radius van die sirkel = 13 < 6Punt B lê buite die sirkel want MB > radius waarde vanradius substitusie invergelyking virsirkelmiddelpuntvorm(2) waarde van r 2 substitusie invergelyking insirkelmiddelpuntvorm (2) substitusie buite (2)substitusie buite (2)[20]Kopiereg voorbehouBlaai om asseblief

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