Mathematics
Senior High
(6)教えてください🙏
472 次の値を求めよ。
(1) sin 105°+sin 15°
(3) cos 105°-cos 15°
(5) sin 105° sin 15°
(2) cos 105°+cos 15°
(4) sin 105° cos 15°
(6) cos 37.5° cos 7.5°
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