化简(1/sin50°)+(√3/cos50°)的结果是______
热心网友
(1/sin50°)+(√3/cos50°)=(cos50+√3sin50)/sin50cos50=2sin(50+30)/0.5sin100=4sin80/sin100=4
热心网友
解:(1/sin50°)+(√3/cos50°)=(cos50+√3sin50)/sin50cos50=2sin(50+30)/0.5sin100=4sin80/sin100=4
化简(1/sin50°)+(√3/cos50°)的结果是______
(1/sin50°)+(√3/cos50°)=(cos50+√3sin50)/sin50cos50=2sin(50+30)/0.5sin100=4sin80/sin100=4
解:(1/sin50°)+(√3/cos50°)=(cos50+√3sin50)/sin50cos50=2sin(50+30)/0.5sin100=4sin80/sin100=4