Ответ:
sin2.5°<sin2.5 cos2.5<cos2.5°
3)cos65°+sin45°=cos65°+sin√2/2
3.2 sin35°-cos85°=0,486421
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Ответ:
sin2.5°<sin2.5 cos2.5<cos2.5°
3)cos65°+sin45°=cos65°+sin√2/2
3.2 sin35°-cos85°=0,486421