三角函數(shù)對照表

1、三角函數(shù)對照表三角函數(shù)對照表三角函數(shù)三角函數(shù)SINSINCOSCOSTANTAN三角函數(shù)三角函數(shù)SINSINCOSCOSTANTAN00010909010無110.01740.01740.99980.99980.01740.017489890.99980.99980.01740.017457.289957.2899220.03480.03480.99930.99930.03490.034988880.99930.99930.03480.

2、034828.636228.6362330.05230.05230.99860.99860.05240.052487870.99860.99860.05230.052319.081119.0811440.06970.06970.99750.99750.06990.069986860.99750.99750.06970.069714.300614.3006550.08710.08710.99610.99610.08740.08748585

3、0.99610.99610.08710.087111.430011.4300660.10450.10450.99450.99450.10510.105184840.99450.99450.10450.10459.51439.5143770.12180.12180.99250.99250.12270.122783830.99250.99250.12180.12188.14438.1443880.13910.13910.99020.9902

4、0.14050.140582820.99020.99020.13910.13917.11537.1153990.15640.15640.98760.98760.15830.158381810.98760.98760.15640.15646.31376.313710100.17360.17360.98480.98480.17630.176380800.98480.98480.17360.17365.67125.671211110.1908

5、0.19080.98160.98160.19430.194379790.98160.98160.19080.19085.14455.144512120.20790.20790.97810.97810.21250.212578780.97810.97810.20790.20794.70464.704613130.22490.22490.97430.97430.23080.230877770.97430.97430.22490.22494.

6、33144.331414140.24190.24190.97020.97020.24930.249376760.97020.97020.24190.24194.01074.010715150.25880.25880.96590.96590.26790.267975750.96590.96590.25880.25883.73203.732016160.27560.27560.96120.96120.28670.286774740.9612

7、0.96120.27560.27563.48743.487417170.29230.29230.95630.95630.30570.305773730.95630.95630.29230.29233.27083.270818180.30900.30900.95100.95100.32490.324972720.95100.95100.30900.30903.07763.077619190.32550.32550.94550.94550.

8、34430.344371710.94550.94550.32550.32552.90422.904220200.34200.34200.93960.93960.36390.363970700.93960.93960.34200.34202.74742.747421210.35830.35830.93350.93350.38380.383869690.93350.93350.35830.35832.60502.605022220.3746

9、0.37460.92710.92710.40400.404068680.92710.92710.37460.37462.47502.475023230.39070.39070.92050.92050.42440.424467670.92050.92050.39070.39072.35582.355824240.40670.40670.91350.91350.44520.445266660.91350.91350.40670.40672.

10、24602.246025250.42260.42260.90630.90630.46630.466365650.90630.90630.42260.42262.14452.144526260.43830.43830.89870.89870.48770.487764640.89870.89870.43830.43832.05032.050327270.45390.45390.89100.89100.50950.509563630.8910

11、0.89100.45390.45391.96261.962628280.46940.46940.88290.88290.53170.531762620.88290.88290.46940.46941.88071.880729290.48480.48480.87460.87460.55430.554361610.87460.87460.48480.48481.80401.804030300.50000.50000.86600.86600.

12、57730.577360600.86600.86600.50000.50001.73201.732031310.51500.51500.85710.85710.60080.600859590.85710.85710.51500.51501.66421.664232320.52990.52990.84800.84800.62480.624858580.84800.84800.52990.52991.60031.600333330.5446

13、0.54460.83860.83860.64940.649457570.83860.83860.54460.54461.53981.539834340.55910.55910.82900.82900.67450.674556560.82900.82900.55910.55911.48251.482535350.57350.57350.81910.81910.70020.700255550.81910.81910.57350.57351.

14、42811.4281sin()cos2cos()sin2tan()cot2cot()tan2???????????????????????sin()sincos()costan()tancot()cot??????????????????????3sin()cos23cos()sin23tan()cot23cot()tan2???????????????????????sin(2)sincos(2)costan(2)tancot(2)c

15、ot????????????????????兩角和與差的三角函數(shù)公式兩角和與差的三角函數(shù)公式萬能公式萬能公式sin()sincoscossinsin()sincoscossincos()coscossinsincos()coscossinsin????????????????????????????????????tantantan()1tantan???????????tantantan()1tantan???????????2tan

16、(2)sin1tan2(2)?????1tan2(2)cos1tan2(2)??????2tan(2)tan1tan2(2)?????半角的正弦、余弦和正切公式半角的正弦、余弦和正切公式三角函數(shù)的降冪公式三角函數(shù)的降冪公式1cossin()221coscos()221cos1cossintan()21cossin1cos?????????????????????????221cos2sin21cos2cos2????????二倍角的正弦

17、、余弦和正切公式二倍角的正弦、余弦和正切公式三倍角的正弦、余弦和正切公式三倍角的正弦、余弦和正切公式sin22sincoscos2cos2sin22cos2112sin2???????????????2tantan21tan2??????sin33sin4sin3cos34cos33cos.3tantan3tan313tan2??????????????????三角函數(shù)的和差化積公式三角函數(shù)的和差化積公式三角函數(shù)的積化和差公式三角函數(shù)的