1.若角a的终边与角π/6的终边关于直线y=x对称,且a∈(-4π,4π),则a=2.已知集合A={a|2kπ≤a≤(2k+1)π,k∈Z},B={a|-4≤a≤4},则A∩B=3.已知扇形面积为25cm²,当扇形的圆心角未多大时,扇形的周长取最
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 21:04:56
![1.若角a的终边与角π/6的终边关于直线y=x对称,且a∈(-4π,4π),则a=2.已知集合A={a|2kπ≤a≤(2k+1)π,k∈Z},B={a|-4≤a≤4},则A∩B=3.已知扇形面积为25cm²,当扇形的圆心角未多大时,扇形的周长取最](/uploads/image/z/12685056-24-6.jpg?t=1.%E8%8B%A5%E8%A7%92a%E7%9A%84%E7%BB%88%E8%BE%B9%E4%B8%8E%E8%A7%92%CF%80%2F6%E7%9A%84%E7%BB%88%E8%BE%B9%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFy%3Dx%E5%AF%B9%E7%A7%B0%2C%E4%B8%94a%E2%88%88%EF%BC%88-4%CF%80%2C4%CF%80%EF%BC%89%2C%E5%88%99a%3D2.%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Ba%7C2k%CF%80%E2%89%A4a%E2%89%A4%EF%BC%882k%2B1%29%CF%80%2Ck%E2%88%88Z%7D%2CB%3D%7Ba%7C-4%E2%89%A4a%E2%89%A44%7D%2C%E5%88%99A%E2%88%A9B%3D3.%E5%B7%B2%E7%9F%A5%E6%89%87%E5%BD%A2%E9%9D%A2%E7%A7%AF%E4%B8%BA25cm%26sup2%3B%2C%E5%BD%93%E6%89%87%E5%BD%A2%E7%9A%84%E5%9C%86%E5%BF%83%E8%A7%92%E6%9C%AA%E5%A4%9A%E5%A4%A7%E6%97%B6%2C%E6%89%87%E5%BD%A2%E7%9A%84%E5%91%A8%E9%95%BF%E5%8F%96%E6%9C%80)
收录互联网各类作业题目,免费共享学生作业习题
头条考试网手机作业共收录了 千万级 学生作业题目
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 21:04:56