Mathematics
Senior High
207や208の様な問題はどのような式で解けばいいですか？？😿
207 三角比の表や電卓などを用いて,次の値を求
めよ。
(1)sin70°
0.9397
(2) cos26°
0.8988
(3) tan37°
0.7536
(4) sin32°
0.5299
*®*A@HM= »£5 © °°° = £ «@ = {A
18**08 DA URA
(5) cos60°
0.5000
DEA REAL 0 = 3 (S)
(6) tan85°
11.4301
教p.138 7
208 三角比の表を用いて,次の式を満たす A を求
めよ。
(1) sin A = 0.3090
A = 18°
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