let-a-gt-0-and-gt-0-fixed-solve-for-0-the-equation-2a-2-cos-x-2-2-x-a-x-a-4-x-

Question Number 163457 by HongKing last updated on 07/Jan/22

let a > 0 and λ > 0 fixed

solve for (0; \infty) the equation :

{2 a}^{2} \cos (\frac{x}{2 λ} - \frac{2 λ}{x}) = a^{\frac{x}{λ}} + a^{\frac{4 λ}{x}}

Commented by mr W last updated on 07/Jan/22

a l w a y s x = 2 λ

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