Contact us
Choose a category below so we can get back to you as quickly as possible.
y=(cosx)^2-4sinx=1-(sinx)^2-4sinx=1-[(sinx)^2+4sinx]可見:當[(sinx)^2+4sinx]為最小值時,y有最大值;當[(sinx)^2+4sinx]為最大值時,y有最小值囙此,只要求出[(sinx)^2+4sinx]的最大值和最小值即可得到y的最大、最…
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.