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Trigonometry, Equations, Pythagoras theorem

Caitlin Mortlock

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Trigonometry

Description

Core 2 (Trig 2) Mind Map on Trigonometry, created by Ben Smith on 29/04/2013.

Mind Map by Ben Smith, updated more than 1 year ago

	Created by Ben Smith almost 12 years ago

135

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Resource summary

Trigonometry

Ratios
1. Sin: 180 - solution
2. Cos: 360 - Solution
3. Tan: +/- 180
4. Cosine Rule
  1. a(2)=b(2)+c(2) - 2BCcosA
5. Sine Rule
  1. a/sina = b/sinb = c/sinc
  2. FLIP FOR ANGLES
6. Area of triangle
  1. 1/2ACsinB
Arcs and sectors
1. Arc Length = rӨ
2. Area of a sector = ½ × θ × r2
HARD TRIG
1. SIN GRAPH: Start a 0, cut at 180 and 360
2. Cos Graph: Start at 1, through 90 and 270
3. Tan Graph: Asymptotes at 90 and 270
4. Cos/Sin - period of 360
5. Tan - period of 180
6. Identities
  1. Sin/cos = tan
  2. sin(2)+cos(2) = 1

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