MHB Overcoming Struggles to Addressing Inequalities Step by Step

  • Thread starter Thread starter Seka88
  • Start date Start date
AI Thread Summary
The discussion focuses on the challenges of understanding inequalities in mathematical functions. Participants express a desire for a step-by-step approach to grasp these concepts better. The conversation highlights the significance of the function f(x) in determining the values above, on, or below the x-axis. Clarifications are sought regarding the specific inequalities related to a particular item, emphasizing the relationship between f(x) and y values. Overall, the thread aims to provide guidance on overcoming struggles with mathematical inequalities.
Seka88
Messages
1
Reaction score
0
I’m overall struggling. Not liking the inequalities. Any step by step would be awesome
 

Attachments

  • D97F9FC9-ABA4-4A78-956C-B889286E4D18.jpeg
    D97F9FC9-ABA4-4A78-956C-B889286E4D18.jpeg
    241.5 KB · Views: 88
Last edited:
Mathematics news on Phys.org
$f(x) > 0$ is any part of the graph that is above the x-axis

$f(x) = 0$ is any part of the graph that crosses or touches the x-axis

$f(x) < 0$ is any part of the graph below the x-axis
 
Beer soaked query follows.
Seka88 said:
I’m overall struggling. Not liking the inequalities. Any step by step would be awesome
D97F9FC9-ABA4-4A78-956C-B889286E4D18.jpeg

Is there a specific inequality behind item #5?
 
Do you not understand that in "y= f(x)" any value of f is a "y" value? f(x)= 0 means y= 0 so that is a point on the x- axis. That is what goes into the first two blanks. For the other two we need to know how "f(x)" is defined here.
 
Last edited:
Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Back
Top