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餘角的三角函數

製作人 : 李躍進. 餘角的三角函數. 餘角的三角函數值. 設三角形 ∆ ABC 中 ∠ C=90 0 , 則 ∠ A 與 ∠ B 互為餘角 ,. 即 ∠ B=90 0 - ∠A. 餘角的三角函數值. B. ∠ B=90 0 - ∠A. sin ↔ cos tan ↔ cot sec ↔ csc. coFunB ↔FunA coFunA ↔FunB. c. a. 90 0. A. b. C. 製作人 : 李躍進. sinB=sin(90 0 -A)=cosA=b/c.

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餘角的三角函數

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  1. 製作人: 李躍進 餘角的三角函數 餘角的三角函數值 設三角形∆ABC中∠C=900, 則∠A與∠B互為餘角, 即∠B=900 -∠A 餘角的三角函數值 B ∠B=900 -∠A sin ↔ cos tan ↔ cot sec ↔ csc coFunB ↔FunA coFunA ↔FunB c a 900 A b C 製作人 : 李躍進 sinB=sin(900-A)=cosA=b/c cosB=cos(900-A)=sinA=a/c tanB=tan(900-A)=cotA=b/a cotB=cot(900-A)=tanA=a/b 製作日期 : 2001/8/2 secB=sec(900-A)=cscA=c/a cscB=csc(900-A)=secA=c/b 製作日期:2001/8/1

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