作业帮求值【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80,
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 21:55:24
![求值【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80,](/uploads/image/z/14056688-56-8.jpg?t=%E6%B1%82%E5%80%BC%E3%80%902sin50%2Bsin10%281%2B%E6%A0%B9%E5%8F%B73%2Atan10%29%5D%2A%E6%A0%B9%E5%8F%B7%E4%B8%8B2%2Asin80%2C)
求值【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80,
求值【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80,
求值【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80,
【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80
=【2sin50+sin10*(cos10+根号3*sin10)/cos10]*根号下2*sin80
=【2sin50+2sin10*cos50/cos10]*根号下2*sin80
=【(2sin50*cos10+2sin10*cos50)/cos10]*根号下2*sin80
=2sin60/cos10*根号下2*cos10
=根号6
【2sin50+sin10(1+根号3*tan10)]*根号下2*sin80
=【2sin50+sin10*(cos10+根号3*sin10)/cos10]*根号下2*sin80
=【2sin50+2sin10*cos50/cos10]*根号下2*sin80
=【(2sin50*cos10+2sin10*cos50)/cos10]*根号下2*sin80
=2sin60/cos10*根号下2*cos10
=根号6
我想应该是吧！