Math Problem Statement

x^(x^(2)+1)=1

Solution

We are given the equation:

x(x2+1)=1x^{(x^2 + 1)} = 1

To solve this, let's first look at the general properties of exponents. For ab=1a^b = 1, this can hold in the following cases:

  1. a=1a = 1, regardless of bb.
  2. b=0b = 0, and a0a \neq 0.
  3. a=1a = -1, and bb is an even integer.

Case 1: x=1x = 1

If x=1x = 1, the equation becomes:

1(12+1)=12=11^{(1^2 + 1)} = 1^{2} = 1

This is true, so x=1x = 1 is a solution.

Case 2: x=1x = -1

If x=1x = -1, the equation becomes:

(1)((1)2+1)=(1)2+1=(1)3=1(-1)^{((-1)^2 + 1)} = (-1)^{2 + 1} = (-1)^3 = -1

This is not equal to 1, so x=1x = -1 is not a solution.

Case 3: x2+1=0x^2 + 1 = 0

If the exponent x2+1=0x^2 + 1 = 0, then:

x2=1x^2 = -1

This has no real solutions since the square of a real number is always non-negative. Therefore, there are no real solutions for this case.

Conclusion:

The only real solution to the equation x(x2+1)=1x^{(x^2 + 1)} = 1 is:

x=1x = 1

Would you like more details on how we handled each case, or any additional help with this?

Here are some follow-up questions you might find interesting:

  1. How would this equation behave for complex numbers?
  2. Can you derive similar solutions for other exponential equations?
  3. What happens if we change the exponent to something like x3+1x^3 + 1?
  4. How do we analyze such equations with logarithms?
  5. Could this equation have other solutions under different conditions (e.g., negative exponents)?

Tip: When solving exponential equations, always remember the main properties of exponents and check whether the base or exponent could be zero or negative, as these often lead to different solutions.

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Math Problem Analysis

Mathematical Concepts

Exponential Equations
Properties of Exponents
Algebra

Formulas

a^b = 1
x^2 + 1 = 0

Theorems

Properties of exponents
Real solutions to exponential equations

Suitable Grade Level

Grades 9-12