Math Problem Statement

cot^2(x) = 1

Solution

The problem presented is:

cot2x=1\cot^2 x = 1

To solve for xx, we can follow these steps:

  1. Take the square root of both sides:

    cotx=±1\cot x = \pm 1

  2. Now, consider the values of xx for which cotx=1\cot x = 1 and cotx=1\cot x = -1.

    • For cotx=1\cot x = 1: The value of xx that satisfies cotx=1\cot x = 1 within one period [0,π][0, \pi] is x=π4x = \frac{\pi}{4}.
    • For cotx=1\cot x = -1: The value of xx that satisfies cotx=1\cot x = -1 within the same interval is x=3π4x = \frac{3\pi}{4}.
  3. Since cotangent is periodic with period π\pi, the general solutions are:

    x=π4+nπandx=3π4+nπx = \frac{\pi}{4} + n\pi \quad \text{and} \quad x = \frac{3\pi}{4} + n\pi

    where nn is any integer.

Thus, the solutions to the equation cot2x=1\cot^2 x = 1 are:

x=π4+nπandx=3π4+nπx = \frac{\pi}{4} + n\pi \quad \text{and} \quad x = \frac{3\pi}{4} + n\pi

Would you like further details on this solution or explanations on related concepts?

Here are 5 related questions for deeper understanding:

  1. What are the general properties of the cotangent function, especially its period and symmetry?
  2. How does one derive the period of trigonometric functions like cotx\cot x?
  3. What is the significance of finding general solutions in trigonometric equations?
  4. How would the solution change if the equation were cot2x=2\cot^2 x = 2 instead of cot2x=1\cot^2 x = 1?
  5. How can we verify the solutions of trigonometric equations graphically?

Tip: When solving trigonometric equations, always consider the periodic nature of the functions to find all possible solutions within the desired interval.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Trigonometric Equations

Formulas

cot^2(x) = 1 implies cot(x) = ±1

Theorems

Periodic Properties of Trigonometric Functions

Suitable Grade Level

Grades 10-12