Mathematics
Senior High
なぜsin二乗(90°-a/2)がcos二乗A/2になるのでしょうか
(x) = (1+tan²4 )sin²(90°-4
(左辺)
2
01-00) asas)+
1
I
0 cos²
A
2
A
2
・
cos².
2/4=1=(右辺)
2
as
CE
Answers
No answer yet
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
Recommended
詳説【数学Ⅰ】第一章 数と式～整式・実数・不等式～
8981
117
詳説【数学Ⅰ】第二章 ２次関数（後半）～最大・最小・不等式～
6128
25
数学ⅠA公式集
5729
20
詳説【数学Ⅰ】第二章 ２次関数（前半）～関数とグラフ～
5156
18