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傳回給定角度的餘弦。

語法

COS(number)

Number     係指以弳度為單位的角度,您需要它的餘弦。

備註

如果角度以度為單位,請將它乘上 PI()/180,或是使用 RADIANS 函數來將其轉換為弧度。

範例

公式

說明 (結果)

=COS(1.047)

1.047 弧度的餘弦值 (0.500171)

=COS(60*PI()/180)

60 度的餘弦值 (0.5)

=COS(RADIANS(60))

60 度的餘弦值 (0.5)

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