Contact us
Choose a category below so we can get back to you as quickly as possible.
벡터 a=(cosα,-2) b=(-1,sinα) 게다가 얻다α-2sinα=0 tanα=1/2 tan(2014π-α)=tan(-α)=-tanα=1/2
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.