Math, asked by Lakhan7879, 10 months ago

What is the formula of cos theta and sin theta in complex number and in terms of e^jtheta?

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Answered by Anonymous
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Answer:

Euler's formula states that for any real number x: ... This complex exponential function is sometimes denoted cis x ("cosine plus i sine"). The formula is still valid if x is a complex number, and so some authors refer to the more general complex version as Euler's formula.

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