Mathematics Grade 12 IEB 2019 Information Sheet (Afrikaans)

Downloaded from hlayiso.com NASIONALE SENIOR SERTIFIKAAT: WISKUNDE: VRAESTEL I – INLIGTINGSBLAD Bladsy i van ii INLIGTINGSBLAD –b ± b 2 – 4ac x = 2a n n n (n + 1) ∑1 = n i =1 ∑i = i =1 2 n Tn =a + (n − 1)d S= n 2 [2a + (n − 1)d ] −1 a(r n − 1) a Tn = ar n= Sn ;r ≠1 = S∞ ; −1 < r < 1 r −1 1− r f ( x + h) − f ( x ) f ′ ( x ) = lim h →0 h = A P (1 + n i ) = A P (1 − n i ) = A P (1 + i ) n = A P (1 − i ) n  (1 + i )n − 1 1 − (1 + i )− n  F = x   P = x   i   i   x + x2 y1 + y 2  = ( x2 – x1 ) 2 + ( y 2 – y1 ) 2 M 1 ; 2  d  2 = y mx + c y – y1 = m ( x – x1 ) y 2 – y1 m = m = tanθ x2 – x1 ( x – a )2 + ( y – b )2 = r 2 IEB Copyright © 2019 BLAAI ASSEBLIEF OM

Downloaded from hlayiso.com NASIONALE SENIOR SERTIFIKAAT: WISKUNDE: VRAESTEL I – INLIGTINGSBLAD Bladsy ii van ii a b c In ∆ABC: = = sin A sin B sin C a= 2 b 2 + c 2 – 2 b c.cos A 1 oppervlakte ∆ ABC = a b.sinC 2 sin(α + = β) sin α .cos β + cos α .sin β sin(α – β ) = sin α .cos β – cos α .sin β cos(α + β ) = cos α .cos β – sin α .sin β cos(α = – β) cos α .cos β + sin α .sin β cos2 α − sin2 α  cos 2 α = 1 − 2sin α 2 sin2 α = 2sin α .cos α 2cos2 α − 1  n ∑ ( xi − x ) 2 ∑ fx i =1 x= σ = 2 n n n ( A) P ( A) = P ( A of= B) P ( A) + P (B ) – P ( A en B ) n (S ) ∑ ( x − x )( y − y ) ŷ= a + bx b= ∑ (x − x ) 2 IEB Copyright © 2019