Core 2 summary edexcel

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  • Core 2 Maths
    • Algebra and functions
      • if f(a)= 0 the (x-a) is a factor
    • Sine and Cosine
      • For angle: SinA/a=SinB/b
      • For side: a/SinA=b/SinB
      • Cosine: a²=b²+c²-2BCcosA or CosA=b²+c²-a²/2BC
      • Area of a triangle: 1/2 absinC
    • Logarithms
      • logan=x   means a^x=n
      • LogaXY=LogaX+ LogaY
      • Loga(X/Y)=LogaX-LogaY
      • Loga(X)^k=KlogaX
    • Coordinate geometry
      • Equation of A circle (x-a)^2-(y-b)^2 = r^2
    • Radian Measure
      • Arc length = r?
      • Area of a sector A=1/2r²?
      • Area of segment A= 1/2r²(?-sin?)
    • Geometric series and sequences
      • Ar^n-1     where a=first term, r= common ratio
      • Sn=a(r^n -1)/r-1
      • s?=a/1-r
    • Differentiation
      • If dy/dx >0  the point is minimum if <0 maximum if =o point of inflection
    • Trigonometric Identities
      • tan?=sin?/cos?
      • sin²?+cos²?=1
    • Integration
      • Area =  ? ba f(x)dx
      • Trapezium rule   1/2h( y0+2(y1+y2+yn-1)+yn)
        • H=b-a/n

Comments

Grasshopper

For the algebraic functions do you mean:

if f(a)=0 then (x-a) is a factor [Factor Theorem]

Abbie Evans

yes, it needs some editing :)

Jay Quinn

if d2y/dx2>0 then its a min point........

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