C2

Core 2 Edexcel formula

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Sine rule

(http://lastminutemaths.com/Flashcard_files/sine_rule.jpg)

Angle                                                            Length

Use when you have

- 2 angles and opposite side

- 2 sides and opposite angle

1 of 4

Cosine rule

Angle:                                           Length

(http://www.pinkmonkey.com/studyguides/subjects/trig/chap3/img36.gif)

- 2 sides and enclosed angle

- 3 sides

2 of 4

Logarithms

Logan=x

ax=n

 

logaxy=logax+logay

loga(x/y)=logax-logay

loga(x)k=klogax

loga(1/x)=-logax

 

To change the base:

Logax=logbx/logba

Logab=1/logba

3 of 4

Coordinate Geometry in the (x,y) plane

4 of 4

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