Contact us
Choose a category below so we can get back to you as quickly as possible.
sinx+cosx+sinxcosx=(sinx+cosx)+[(sinx+cosx)²;-1]/2=(1/2)(sinx+cosx)²;+(sinx+cosx)-1/2=(1/2)[(sinx+cosx)+1]²;-1因為sinx+cosx=√2sin(x+π/4)∈[-√2,√2]sinx+cosx=-1時上式最小值為-1sinx+cos=…
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.