Identities
Simplifying Identities
Pythagorean Identities
Solving Trig Equations
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

Solutions 0 to 360 degrees for sin x = √3 / 2

What is 60 and 120 degrees?

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

Solutions 0 to 2π for cos x = -½

What is 2π/3 and 4π/3?

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

All solutions 0 to 360 degrees for 2sinx - 1 = 0

What is 30 and 150 degrees?

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

All solutions 0 to 2π for 4sin²x - 1 = 0

What is π/6, 5π/6, 7π/6, and 11π6?

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

All solutions in radians for 2sinx - √2 = 0

What is ∏/4 ± 2∏n and 3∏/4 ± 2∏n?

500

tan(13π/12)

What is -2 + √3?

M
e
n
u