ONE-SCHOOL.NET SPM Additional Mathematics Formula List for Paper 1 ALGEBRA − b ± b 2 − 4ac 2a 1 x= 2 am x an = a m + n 3 am ÷ an = a m – n log a b = 9 Tn = a + (n – 1)d n [2a + (n − 1)d ] 2 10 S n = 4 (a ) =a 5 log a mn = log a m + log a n 6 log a 7 log a mn = n log a m m n mn m = log a m − log a n n log c b log c a 8 11 Tn = ar n – 1 12 Sn = 13 S∞ = ( ) ( ) a r n −1 a 1− r n = , r ≠1 r −1 1− r a , 1− r r <1 CALCULUS (KALKULUS) 1 y = uv , dv du dy =u +v dx dx dx v 2 u dy y= , = v dx 3 dy dy du = × dx du dx 4 du dv −u dx dx v2 5 Area under a curve (Luas di bawah lengkung) = ∫ = ∫ b a b a y dx or (atau ) x dy Volume generated (Isipadu janaan) = = ∫ ∫ b a b a πy 2 dx or (atau ) πx 2 dy TRIGONOMETRY (TRIGONOMETRI) 1 2 Arc length , s = r θ Panjang lengkok, s = j θ Area of sector, A= Luas sektor, L = 1 2 r θ 2 1 2 jθ 2 http://www.one-school.net/notes.html 3 a b c = = sin A sin B sin C 4 a2 = b2 + c2 – 2bc cos A a2 = b2 + c2 – 2bc kos A 5 Area of triangle (Luas segitiga) = 1 a b sin C 2 ONE-SCHOOL.NET STATISTICS (STATISTIK) 1 x= Σx N 5 2 x= Σ fx Σf 6 3 σ= Σ( x − x ) = N 2 Σx 2 −x2 N Σ f (x − x ) 4 σ= = Σf 2 ⎛1 ⎞ ⎜ N −F⎟ ⎟C m=L+⎜2 ⎜ fm ⎟ ⎜ ⎟ ⎝ ⎠ Q I = 1 × 100 Q2 7 I= Σ Wi I i Σ Wi Σ fx 2 −x2 Σf GEOMETRY (GEOMETRI) 1 Distance (Jarak) (x1 − x 2 )2 + ( y1 − y 2 )2 = 2 Mid–point (Titik tengah) (x, y ) = ⎛⎜ x1 + x2 , y1 + y 2 ⎞⎟ ⎝ 3 2 2 ⎠ A point dividing a segment of a line (Titik yang membahagi suatu tembereng garis) (x , y ) = ⎛⎜ nx1 + mx2 , ny1 + my 2 ⎞⎟ ⎝ 4 m+n m+n ⎠ Area of triangle (Luas segitiga) = 1 2 (x1 y 2 + x 2 y3 + x3 y1 ) − (x2 y1 + x3 y 2 + x1 y3 http://www.one-school.net/notes.html )