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Identities
Simplifying Identities
Pythagorean Identities
Sum and Difference Identities
100
1 / (sin x)
What is csc x?
100
(sec x)(cos x)
What is 1?
100
sin²x + cos²x
What is 1?
100

sin37cos15-cos37sin15

What is 22 degrees?

200
(sin x) / (cos x)
What is tan x?
200
(tan x)(cos x)
What is sin x?
200
1 + cot²x
What is csc²x?
200

sin(5π/6)sin(3π/4) - cos(5π/6)cos(3π/4)

What is -cos(19π/12)?

300
1 / (sec x)
What is cos x?
300
(sec x) / (tan x)
What is csc x?
300
1 - cos²x
What is sin²x?
300

cos 75

What is (√2-√6)/4?

400
(cos x) / (sin x)
What is cot x?
400
sin x (csc x - sec x)
What is 1 - tan x?
400
sec²x - 1
What is tan²x?
400

sin(-π/12)

What is (√2-√6)/4

500
cos (-x)
What is cos x?
500

csc x - sin x

What is (cos²x) / (sin x) or (cos x)(cot x) ?

500
(1 + csc x)(1 - csc x)
What is -cot²x ?
500

tan(13π/12)

What is -2 + √3?