14 terms

Trigonometry Identities Level 1

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sin²x + cos²x
sec²x
tan²x + 1
csc²x
cot²x + 1
tan x
(sin x) / (cos x)
cot x
(cos x) / (sin x)
csc x
1 / sin x
sec x
1 / cos x
cot x
1 / tan x
-sin x
sin (-x)
cos x
cos (-x)
-tan x
tan (-x)
cos x
sin (90° - x)
csc x
sec (90° - x)
cot x
tan (90° - x)
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