Contact us
Choose a category below so we can get back to you as quickly as possible.
y=(x²;-0.5-2.5)/(2-4x²;)=(x²;-0.5)/(2-4x²;)-2.5/(2-4x²;)=(x²;-0.5)/[-4(x²;-0.5)]-2.5/(2-4x²;)=-1/4-5/(4-8x²;)4-8x²;≤4所以5/(4-8x²;)0,-5/(4-8x ²;)≤-5/4-…
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.