verify using euler's relations.
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use euler's to verify
- e^ jwt = cos (wt) + jsin(wt)
- cos(wt)= 1/2 [ e^jwt + e^-jwt]
- sin(wt)= 1/2j [ e^jwt - e^-jwt]
- abs( e^jwt)= 1
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Star Strider
2019-3-1
Use the series expansion for 
and compare it with the series expansion for the other functions.
and compare it with the series expansion for the other functions. 回答（0 个）
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2019-3-1
2019-3-1
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