If A=
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| 5 e5 t sin(4 t) −5 e2 t cos(4 t)|
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| −6 e5 t cos(4 t) −6 e2 t sin(4 t)|
then A^−1 is?
I need to find the inverse matrix of A, (A^-1) i've done it several times and have gotten the wrong answer (obviously, or i wouldn't be on here)
It's a homework quiz online that's due this evening, any help would be wonderful. thank you all