Mathematics
Senior High
Solved
赤線から青線に変わる過程を教えて欲しいです！！
85
■問題の考え方
| 加法定理を用いて変形し, sin0, cost で表
す。
■与式
2
= sin 0+ sin cos+cos sin
3
2
371
とお + sincos
3
T+cos sin-
4
π
1+3Daie
12+ √3Date = "del nia
+-
= sin 0-2 sin 0 +12500081 nie
1
2
=0
sine√3
COS
$2
(+0)200=10
Answers
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ありがとうございます！助かりました！