Show that 1/i = -i, e -ix = cos x - i sin x, e ix +

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Show that 1/i = -i, e^-ix = cos x - i sin x, e^ix+ e^-ix = 2 cos x, e^ix- e^-ix=2i sin x, e^ikx = cos kx + i sin kx.

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Advanced Engineering Mathematics

ISBN: 978-0470458365

10th edition

Authors: Erwin Kreyszig

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Question Posted: Sep 30, 2022 03:09 AM

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Show that 1/i = -i, e -ix = cos x - i sin x, e ix +

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First write out the general form of the solution in algebraic notation x iy 2m Next well find two va...View the full answer

Advanced Engineering Mathematics

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