High school mathematics electives 4-5, list questions, such as a paragraph behind the objective function, how to understand? Be popular and detailed.

For quadratic function y=x? -bx+c, when x=b/2, the function has a minimum value of c-b? /4 (Imagine a function image)

It's just that x in your topic is an integer for a certain floor of a building, and when n+ 1 is an even number, x=(n+ 1)/2 is an integer, which can satisfy that x is an integer.

When n+ 1 is an odd number and x is not an integer, we should take an integer around (n+ 1)/2.

How to improve the effectiveness of classroom language evaluation

Can I register separately for the college students' math competition?

Senior two math final exam.

Mathematical soul conjecture

What does a ruler mean?

Is the college entrance examination the same as the undergraduate entrance examination? Is it necessary for financial and insurance undergraduates to take the advanced number? Is it an undergraduate c

What number divided by what number equals more than 28? What can be the minimum divisor of this problem? What is the minimum divisor? Ask god for help.

Composition for the second grade of primary school (600 words): I am the emperor, and I am afraid of everyone.

A nagging grandmother's composition

Reading the answer mathematics of the volume.