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A-1-2-1-1-find-e-A-and-e-tA-find-ch-A-and-sh-A-




Question Number 141652 by Mathspace last updated on 21/May/21
A = (((1           2)),((−1       1)) )  find e^(A )  and e^(tA)   find ch(A) and sh(A)
$${A}\:=\begin{pmatrix}{\mathrm{1}\:\:\:\:\:\:\:\:\:\:\:\mathrm{2}}\\{−\mathrm{1}\:\:\:\:\:\:\:\mathrm{1}}\end{pmatrix} \\ $$$${find}\:{e}^{{A}\:} \:{and}\:{e}^{{tA}} \\ $$$${find}\:{ch}\left({A}\right)\:{and}\:{sh}\left({A}\right) \\ $$

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