What is the Pythagorean identity for sine and cosine?
Trig Identities

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Mathematics
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
sin²θ + cos²θ = 1
2.
FLASHCARD QUESTION
Front
What is the definition of tangent in terms of sine and cosine?
Back
tan(x) = sin(x)/cos(x)
3.
FLASHCARD QUESTION
Front
What is the reciprocal identity for sine?
Back
csc(x) = 1/sin(x)
4.
FLASHCARD QUESTION
Front
What is the reciprocal identity for cosine?
Back
sec(x) = 1/cos(x)
5.
FLASHCARD QUESTION
Front
What is the reciprocal identity for tangent?
Back
cot(x) = 1/tan(x) = cos(x)/sin(x)
6.
FLASHCARD QUESTION
Front
What is the identity for secant squared?
Back
sec²θ = 1 + tan²θ
7.
FLASHCARD QUESTION
Front
What is the identity for cosecant squared?
Back
csc²θ = 1 + cot²θ
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