Trigonometry — Sin, Cos, Tan (AQA GCSE Maths): Flashcards

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Trigonometry — Sin, Cos, Tan
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Meaning of trigonometry

Triangle measurement

Mnemonic for trig formulas

SOH CAH TOA

sin\sin equals

Opposite ÷ Hypotenuse

cos\cos equals

Adjacent ÷ Hypotenuse

tan\tan equals

Opposite ÷ Adjacent

The hypotenuse is

Longest side opposite the right angle

The opposite side is

Side directly across from the angle

The adjacent side is

Side next to angle (not hypotenuse)

When to use sin1\sin^{-1}, cos1\cos^{-1}, tan1\tan^{-1}

To find an angle

Calculator mode for trig

DEG (degrees) mode

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