Identities
1 / (sin x)
What is csc x?
Simplify (sec x)(cos x).
What is 1?
sin²x + cos²x
What is 1?
Solutions from 0o to 360o for sin x = √3 / 2.
What is 60o and 120o degrees?
sin 30o
What is 1/2?
Simplify (tan x)(cos x).
What is sin x?
1 + cot²x
What is csc²x?
Solutions 0 to 2π for cos x = -½
What is 2π/3 and 4π/3?
tan 135o
What is -1?
Simplify (sec x) / (tan x).
What is csc x?
1 - cos²x
What is sin²x?
All solutions 0o to 360o for 2sinx - 1 = 0
What is 30o and 150o degrees?
11pi/6 radians in degrees
What is 330o?
Simplify sin x (csc x - sec x).
What is 1 - tan x?
sec²x - 1
What is tan²x?
All solutions 0 to 2π for 4sin²x - 1 = 0.
What is π/6, 5π/6, 7π/6, and 11π/6?
Factor 4a - 9.
What is (2√a + 3)(2√a - 3)?
Express csc x - sin x as a product or quotient of trigonometric functions.
What is (cos²x) / (sin x) or (cos x)(cot x) ?
(1 + csc x)(1 - csc x)
What is -cot²x ?
All solutions in radians for 2sinx - √2 = 0
What is ∏/4 ± 2∏n and 3∏/4 ± 2∏n?
2/(x + 1) + 3/(x - 1)
What is (5x + 1) / (x² - 1)?