sin317°cos13°+cos137°sin13°等于多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/29 23:50:10
xR]kA+!ЧΌ$DtWmv#OiiDBV*#Hae7ONU}={νSqvie
6KdI{8K^ڪVA3̒'٣O][${Jsj4LKÀf)'q3+SK& ` D~[%uKq-\.۪V:
QcKлchBa_e8llȅT
:;jΔk |<=dʕ"lS9QC
Fd8d+B}}*1P2Ws]Pf/b6j(w#yNz\A;x.5N-45Ce
P̤يi%Ps!˘8_sXp3?d[t!k*/?%
sin317°cos13°+cos137°sin13°等于多少
计算:cos13°×cos47°+sin13°×cos137°,
cos13度cos47度+sin13度cos137度等于多少
sin43°cos13°
化简sin13°cos17°+sin17°cos13°,
sin13°cos17°+cos13°sin17°
sin43°cos13°+sin47°cos103°=
sin13°cos77°+cos13°sin77°=
化简:sin43°-sin13°cos30°/cos13°
sin17°cos13°+cos17°cos77°=
cos43°cos13° +sin43°sin13°的值,
cos13°cos58°+sin13°sin58°怎么算
sin13°+cos30°sin17°/cos13°-sin30°sin17°化简求值
cos73°cos13°+cos17°sin13°=求答案
sin43°cos13°-cos43°sin13°具体一点的过程
cos47°cos13°-cos43°sin13°的值
计算sin43°cos13°+sin13°cos43°等于多少
1.化简:(sin450°-α)-sin(180°-α)+cos(450°-α)+cos(180°-α)的值2.化简:sin(-23/6π)+cos13π/7xtan4π-cos13/3π