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Summary Trigonometry ratios notes grade 12 £4.48   Add to cart

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Summary Trigonometry ratios notes grade 12

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Trigonometry ratio summary grade 12. Well used in 2023 to achieve my B aggregate goal. in Pure math's in grade 12 The following topics make up each of the TWO exam papers that you write at the end of the year: Paper 1: Patterns and sequences; Finance, growth and decay; Functions and graphs; Al...

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  • September 2, 2024
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The relationship between side lengths and angles of triangles
BASIC RATIOS

opposite
sinθ =
hypotenuse

adjacent
cosθ =
hypotenuse

opposite
tanθ =
adjacent




FINDING SIDES
C In terms of the given angle:

Want Have

Opp Hyp

opposite
sin63° =
hypotenuse
A AB
B sin63° =
6.2
sin63° × 6.2 = AB

AB= 5,5cm


FINDING ANGLES
In terms of the unknown angle:

Want Have

θ Adj, hyp

adjacent
cosθ =
hypotenuse
6
θ cosθ =
10
6
θ = cos-1 ( )
10

θ = 53,1°


© L.U.C. MATH ACADEMY

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