Math Problem Statement

f(x) =csc x

Solution

The function f(x)=csc(x)f(x) = \csc(x) represents the cosecant function, which is the reciprocal of the sine function. In mathematical terms:

csc(x)=1sin(x)\csc(x) = \frac{1}{\sin(x)}

Domain and Range:

  • Domain: The function is undefined where sin(x)=0\sin(x) = 0, which occurs at integer multiples of π\pi, i.e., x=nπx = n\pi, where nZn \in \mathbb{Z}. Therefore, the domain is:

xR{nπnZ}x \in \mathbb{R} \setminus \{ n\pi \mid n \in \mathbb{Z} \}

  • Range: Since csc(x)\csc(x) is the reciprocal of sin(x)\sin(x), and sin(x)\sin(x) varies between -1 and 1 (but not equal to 0), the range is:

(,1][1,)(-\infty, -1] \cup [1, \infty)

Key Properties:

  • Periodicity: The cosecant function has a period of 2π2\pi, which means csc(x+2π)=csc(x)\csc(x + 2\pi) = \csc(x).
  • Asymptotes: Vertical asymptotes occur where sin(x)=0\sin(x) = 0, at x=nπx = n\pi.

Would you like more details on the graph of this function or other properties?

Related Questions:

  1. How does the graph of f(x)=csc(x)f(x) = \csc(x) compare to that of f(x)=sin(x)f(x) = \sin(x)?
  2. Can you explain the behavior of the function near its vertical asymptotes?
  3. What is the derivative of f(x)=csc(x)f(x) = \csc(x)?
  4. What is the integral of f(x)=csc(x)f(x) = \csc(x)?
  5. How would csc(x)\csc(x) behave if it were composed with another function?

Tip:

Always be cautious with reciprocal functions like cosecant, as they introduce vertical asymptotes where the original sine function is zero.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Reciprocal Functions
Periodicity
Asymptotes

Formulas

csc(x) = 1/sin(x)

Theorems

Reciprocal function properties
Periodicity of trigonometric functions

Suitable Grade Level

Grades 10-12