已知sinα=0.2，cosβ=0.8，则α+β=______（精确到1′）．_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

已知sinα=0.2，cosβ=0.8，则α+β=______（精确到1′）．

答案

48.4°．

选择题

— Why do some people ______ drugs?

— As far as I know, they want to change the way they feel. [ ]

A. plot

B. violate

C. abuse

D. resist

问答题简答题

新生儿医保怎么办理？