10.1 What is an identity?
An identity is an equation true for all values (where it is defined).
10.2 Core identities (starter)
TEXT
sin^2 θ + cos^2 θ = 1
1 + tan^2 θ = sec^2 θ
1 + cot^2 θ = cosec^2 θ
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Trigonometric Identities (Basics)
auto_storiesAcademic Material
Core identities and how to use them for simplification.