Basic Trigonometry

trigonometry

Trigonometry investigates the relationship between the sides and the angles in triangles. These special relationships are used in calculus, engineering and physics. So, it is necessary to understand and know these relationships.

The Right Triangle and the Pythagorean Theorem

A right triangle is one that has a right angle. The side opposite the right angle is called the hypotenuse and the other two sides are referred to as legs.

a² + b² = c² trigonometry

Basic Functions

sine (sin) is the ratio of the side opposite and the hypotenuse

cosine (cos) is the ratio of the side adjacent and the hypotenuse

tangent (tan) is the ratio of the side opposite and the side adjacent

REMEMBER: SOH CAH TOA

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◦ The Language
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◦ Linear Motion
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