What is the answer to e^x+e^{-x}=1 ?

The answer to e^x+e^{-x}=1 is No Solution for x\in\mathbb{R}

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e^x+e^{-x}=1

e^{x} + e^{- x} = 1

No Solution for x \in R

Solution steps

e^{x} + e^{- x} = 1

Apply exponent rules

e^{x} + (e^{x})^{- 1} = 1

Rewrite the equation with

e^{x} = u

u + (u)^{- 1} = 1

Solve

u + u^{- 1} = 1 :

No Solution for

u \in R

No Solution for x \in R

3^{2 x + 1} - 8 (3^{x}) = 3

3^{y} + 3^{y + 2} = 90

8 (\frac{1}{2})^{x} + 2 = 2^{x}

x^{x^{9}} = 3^{3}

x, z = y e^{x y}

What is the answer to e^x+e^{-x}=1 ?
The answer to e^x+e^{-x}=1 is No Solution for x\in\mathbb{R}