题目内容
复数-sin35°+icos35°化成三角形式为cos125°+isin125°
( )
答案:T
解析:
解析:
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解: -sin35°+icos35° =cos(90°+35°)+isin(90°+35°) =cos125°+isin125°
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题目内容
复数-sin35°+icos35°化成三角形式为cos125°+isin125°
( )
|
解: -sin35°+icos35° =cos(90°+35°)+isin(90°+35°) =cos125°+isin125°
|