0° ,30°,37°,45°,53° ,60° ,90°,120°,135° ,150°,180 °的sin\tan\
1个回答

sin0° =0,cos0° =1,tan0° =0

sin30° =1/2,cos30° =√3/2,tan30° =√3/3

sin37° =0.602,cos37° =0.799,tan37° =0.754

sin45° =√2/2,cos45° =√2/2,tan45° =1

sin53° =0.799,cos53° =0.602,tan53°=0.754

sin60° =√3/2,cos60° =1/2,tan60° =√3

sin90° =1,cos90° =0,tan90° 无意义

sin120° =√3/2,cos120° =-1/2,tan120° =-√3

sin135° =√2/2,cos135° =-√2/2,tan135° =-1

sin150° =1/2,cos150° =-√3/2,tan150° =-√3/3

sin180° =0,cos180° =-1,tan180° =0

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