sin150,150度三角函数值如何算？

sin150°=sin(180°-30°)=sin30°=1/2

cos150°=cos(180°-30)=-cos30°=-(√3)/2

tan150°=tan(180°-30)=-tan30°=-(√3)/3

cot150°=cot(180°-30)=-cot30°=-√3

扩展资料

π-α与α的三角函数值之间的关系

sin(π－α)=sinα

cos(π－α)=－cosα

tan(π－α)=－tanα

cot(π－α)=－cotα

2π-α与α的三角函数值之间的关系

sin(2π－α)=－sinα

cos(2π－α)=cosα

tan(2π－α)=－tanα

cot(2π－α)=－cotα

常见的三角函数值包括正弦函数值、余弦函数值和正切函数值。下面是小编整理的三角函数值对照表sin150，供大家参考。

常用三角函数值对照表

sin0=sin0°=0

cos0=cos0°=1

tan0=tan0°=0sin15=0.650；

sin15°=0.259

cos15=-0.759；cos15°=0.966

tan15=-0.855；tan15°=0.268

sin30°=1/2

cos30°=0.866；

tan30°=0.577；

sin45°=0.707；

cos45°=0.707

tan45=1.620；tan45°=1

sin60=-0.305；sin60°=0.866

cos60=-0.952；cos60°=1/2

tan60=0.320；tan60°=1.732

sin75=-0.388；sin75°=0.966

cos75=0.922；cos75°=0.259

tan75=-0.421；tan75°=sin75°/cos75°=3.732

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

特殊角三角函数值

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

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

cos25=0.9063077870366499

cos26=0.898794046299167

cos27=0.8910065241883679

cos28=0.882947592858927

cos29=0.8746197071393957

cos30=0.8660254037844387

tan1=0.017455064928217585

tan2=0.03492076949174773

tan3=0.052407779283041196

tan4=0.06992681194351041

tan5=0.08748866352592401

tan6=0.10510423526567646

tan7=0.1227845609029046

tan8=0.14054083470239145

tan9=0.15838444032453627

tan10=0.17632698070846497

tan11=0.19438030913771848

tan12=0.2125565616700221

tan13=0.2308681911255631

tan14=0.24932800284318068

tan15=0.2679491924311227

tan16=0.2867453857588079

tan17=0.30573068145866033

tan18=0.3249196962329063

tan19=0.34432761328966527

tan20=0.36397023426620234

tan21=0.3838640350354158

tan22=0.4040262258351568

tan23=0.4244748162096047

tan24=0.4452286853085361

tan25=0.4663076581549986

tan26=0.4877325885658614

tan27=0.5095254494944288

tan28=0.5317094316614788

tan29=0.554309051452769

tan30=0.5773502691896257