inverse cosecant
Học thuậtThân thiện
Definition
- Noun:
- The angle that has a cosecant equal to a given number: The inverse cosecant of a number is the angle (typically measured in radians or degrees) whose cosecant is that number. It is the inverse function of the cosecant.
Usage
- The term "inverse cosecant" is used in trigonometry and mathematics. It is often denoted as arccsc, csc⁻¹, or acosec.
- It answers the question: "For a given value , what angle satisfies ?"
- The principal value of the inverse cosecant function is usually restricted to the ranges and in radians (or and in degrees) to make it a proper function.
Examples
- Noun:
- If
csc(θ) = 2, then the inverse cosecant of 2 isθ = π/6or 30 degrees. - The calculation requires finding the
inverse cosecantof the hypotenuse-to-opposite ratio. arccsc(√2) = π/4.
Advanced Usage
- Domain and Range: The domain of the inverse cosecant function is . Its range (principal values) is .
- Relationship with Inverse Sine: The inverse cosecant is related to the inverse sine: for .
- Derivative: The derivative of is for .
Variants and Related Words
- arccosecant (n): Another term for inverse cosecant.
- arcsecant (n): The inverse function of the secant.
- arccotangent (n): The inverse function of the cotangent.
- Inverse Trigonometric Function (n): The general category of functions that includes inverse sine, cosine, tangent, cosecant, secant, and cotangent.
Synonyms
- arccsc
- csc⁻¹
- acosec
Related Mathematical Expressions
- y = arccsc(x): Equivalent to stating for in the principal range.
- csc(arccsc(x)) = x: For all in the domain .
- arccsc(csc(θ)) = θ: Only for in the principal value range of the inverse cosecant function.
Noun
- the angle that has a cosecant equal to a given number