tan30度等于多少 三角函数必背公式，小编带你了解更多信息 。
sin0=sin0°=0
cos0=cos0°=1
tan0=tan0°=0
sin15=0.650；sin15°=（√6-√2）/4
cos15=-0.759；cos15°=（√6+√2）/4
tan15=-0.855；tan15°=2-√3
sin30=-0.988；sin30°=1/2
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cos30=0.154；cos30°=√3/2
tan30=-6.405；tan30°=√3/3
sin45=0.851；sin45°=√2/2
cos45=0.525；cos45°=sin45°=√2/2
tan45=1.620；tan45°=1
sin60=-0.305；sin60°=√3/2
cos60=-0.952；cos60°=1/2
tan60=0.320；tan60°=√3
sin75=-0.388；sin75°=cos15°
cos75=0.922；cos75°=sin15°
tan75=-0.421；tan75°=sin75°/cos75° =2+√3
sin90=0.894；sin90°=cos0°=1
cos90=-0.448；cos90°=sin0°=0
tan90=-1.995；tan90°不存在
sin105=-0.971；sin105°=cos15°
cos105=-0.241；cos105°=-sin15°
tan105=4.028；tan105°=-cot15°
sin120=0.581；sin120°=cos30°
cos120=0.814；cos120°=-sin30°
tan120=0.713；tan120°=-tan60°
sin135=0.088；sin135°=sin45°
cos135=-0.996；cos135°=-cos45°
tan135=-0.0887；tan135°=-tan45°
sin150=-0.7149；sin150°=sin30°
cos150=-0.699；cos150°=-cos30°
tan150=-1.022；tan150°=-tan30°
sin165=0.998；sin165°=sin15°
cos165=-0.066；cos165°=-cos15°
tan165=-15.041；tan165°=-tan15°
sin180=-0.801；sin180°=sin0°=0
cos180=-0.598；cos180°=-cos0°=-1
tan180=1.339；tan180°=0
sin195=0.219；sin195°=-sin15°
cos195=0.976；cos195°=-cos15°
tan195=0.225；tan195°=tan15°
sin360=0.959；sin360°=sin0°=0
cos360=-0.284；cos360°=cos0°=1
tan360=-3.380；tan360°=tan0°=0
cos72度=[(√5)-1]/4（利用黄金等腰三角形可得出）
sin1=0.01745240643728351 sin2=0.03489949670250097 sin3=0.05233595624294383
sin4=0.0697564737441253 sin5=0.08715574274765816 sin6=0.10452846326765346
sin7=0.12186934340514747 sin8=0.13917310096006544 sin9=0.15643446504023087
sin10=0.17364817766693033 sin11=0.1908089953765448 sin12=0.20791169081775931
sin13=0.22495105434386497 sin14=0.24192189559966773 sin15=0.25881904510252074
sin16=0.27563735581699916 sin17=0.2923717047227367 sin18=0.3090169943749474
sin19=0.3255681544571567 sin20=0.3420201433256687 sin21=0.35836794954530027
sin22=0.374606593415912 sin23=0.3907311284892737 sin24=0.40673664307580015
sin25=0.42261826174069944 sin26=0.4383711467890774 sin27=0.45399049973954675
sin28=0.4694715627858908 sin29=0.48480962024633706 sin30=0.49999999999999994
sin31=0.5150380749100542 sin32=0.5299192642332049 sin33=0.544639035015027
sin34=0.5591929034707468 sin35=0.573576436351046 sin36=0.5877852522924731
sin37=0.6018150231520483 sin38=0.6156614753256583 sin39=0.6293203910498375
sin40=0.6427876096865392 sin41=0.6560590289905073 sin42=0.6691306063588582
sin43=0.6819983600624985 sin44=0.6946583704589972 sin45=0.7071067811865475
sin46=0.7193398003386511 sin47=0.7313537016191705 sin48=0.7431448254773941
sin49=0.7547095802227719 sin50=0.766044443118978 sin51=0.7771459614569708
【tan30度等于多少 三角函数必背公式】sin52=0.7880107536067219 sin53=0.7986355100472928 sin54=0.8090169943749474
sin55=0.8191520442889918 sin56=0.8290375725550417 sin57=0.8386705679454239
sin58=0.848048096156426 sin59=0.8571673007021122 sin60=0.8660254037844386
sin61=0.8746197071393957 sin62=0.8829475928589269 sin63=0.8910065241883678
sin64=0.898794046299167 sin65=0.9063077870366499 sin66=0.9135454576426009
sin67=0.9205048534524404 sin68=0.9271838545667873 sin69=0.9335804264972017
sin70=0.9396926207859083 sin71=0.9455185755993167 sin72=0.9510565162951535
sin73=0.9563047559630354 sin74=0.9612616959383189 sin75=0.9659258262890683
sin76=0.9702957262759965 sin77=0.9743700647852352 sin78=0.9781476007338057
sin79=0.981627183447664 sin80=0.984807753012208 sin81=0.9876883405951378
sin82=0.9902680687415704 sin83=0.992546151641322 sin84=0.9945218953682733
sin85=0.9961946980917455 sin86=0.9975640502598242 sin87=0.9986295347545738
sin88=0.9993908270190958 sin89=0.9998476951563913
sin90=1
cos1=0.9998476951563913 cos2=0.9993908270190958 cos3=0.9986295347545738
cos4=0.9975640502598242 cos5=0.9961946980917455 cos6=0.9945218953682733
cos7=0.992546151641322 cos8=0.9902680687415704 cos9=0.9876883405951378
cos10=0.984807753012208 cos11=0.981627183447664 cos12=0.9781476007338057
cos13=0.9743700647852352 cos14=0.9702957262759965 cos15=0.9659258262890683
cos16=0.9612616959383189 cos17=0.9563047559630355 cos18=0.9510565162951535
cos19=0.9455185755993168 cos20=0.9396926207859084 cos21=0.9335804264972017
cos22=0.9271838545667874 cos23=0.9205048534524404 cos24=0.9135454576426009
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