Superstability of Some Pexider-Type Functional Equation
© Gwang Hui Kim. 2010
Received: 27 August 2010
Accepted: 19 October 2010
Published: 20 October 2010
We will investigate the superstability of the sine functional equation from the following Pexider-type functional equation ( ), which can be considered the mixed functional equation of the sine and cosine functions, the mixed functional equation of the hyperbolic sine and hyperbolic cosine functions, and the exponential-type functional equations.
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