总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 (0.05*sin(3*π/4)+0.06*sin(π/4))/(0.05*cos(3*π/4)-0.06*cos(π/4)) 的值.
题型:数学计算
解:
(0.05*sin(3*π/4)+0.06*sin(π/4))/(0.05*cos(3*π/4)-0.06*cos(π/4))
=(0.05*sin2.356194+0.06*sin(π/4))/(0.05*cos(3*π/4)-0.06*cos(π/4))
=(0.05*sin2.356194+0.06*sin0.785398)/(0.05*cos(3*π/4)-0.06*cos(π/4))
=0.077781/(0.05*cos(3*π/4)-0.06*cos(π/4))
=0.077781/(0.05*cos2.356194-0.06*cos(π/4))
=0.077781/(0.05*cos2.356194-0.06*cos0.785398)
=0.077781/(-0.077781)
=-1 答案:(0.05*sin(3*π/4)+0.06*sin(π/4))/(0.05*cos(3*π/4)-0.06*cos(π/4))=-1 注:弧度制你的问题在这里没有得到解决?请到 热门难题 里面看看吧!