Chapter 9: Trigonometric Ratios Flashcards by Markus Downhill

Q

Cosine rule:

A

a² = b² + c² -2bc(cos(A))

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Q

Sin rule when finding angle:

A

Sin (A) ➗ a = Sin (B) ➗ b

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Q

Sine rule when finding length of side:

A

a ➗ Sin (A) = b ➗ Sin (B)

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