We study random exponential sums of the form $\sum_{k=1}^{n}X_{k}\,{\rm exp}\{i(\lambda _{k}^{(1)}t_{1}+\cdots +\lambda _{k}^{(s)}t_{s})\}$, where $\{X_{n}\}$ is a ...
In support of efforts to foreground functions as central objects of study in algebra, this study provides evidence of how secondary students use trigonometric functions in contextual tasks. The author ...
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