Fundamental Trigonometric Identities Flashcards
Reciprocal Identity: Sin x
1/csc x
Reciprocal Identity: Cos x
1/ sec x
Reciprocal Identity: Tan x
1/Cot x
Reciprocal Identity: Csc x
1/sin x
Reciprocal Identity: sec x
1/cos x
Reciprocal Identity: cot x
1/tan x
Quotient Identity: tan x
Sin x/cos x
Quotient Identity: cot x
Cos x/sin x
Pythagorean Identity: 1
Sin^2 x+ cos^2 x
Pythagorean Identity: 1+ tan^2 x
Sec^2 x
Pythagorean Identity: 1+ cot^2 x
Csc^2 x
Cofunction Identity: sin(pi/2-x)
Cos x
Cofunction Identity: cos(pi/2-x)
Sin x
Cofunction Identity: tan(pi/2-x)
Cot x
Cofunction Identity: cot(pi/2-x)
Tan x
Cofunction Identity: sec(pi/2-x)
Csc x
Cofunction Identity: csc(pi/2-x)
Sec x
Even/Odd Identity: sin(-x)
-sin x
Even/Odd Identity: cos(-x)
-cos x
Even/Odd Identity: tan(-x)
-tan x
Even/Odd Identity: csc(-x)
-csc x
Even/Odd Identity: sec(-x)
-sec x
Even/Odd Identity: cot(-x)
-cot x
