F(x)=xabs(x) show f '(0) exists

  • Thread starter Thread starter stl11
  • Start date Start date
stl11
Messages
1
Reaction score
0
f(x)=xabs(x) show f '(0) exists
 
Mathematics news on Phys.org
What have you tried so far. You'll have to show some work first showing you attempted it before we can help you.
 

Thread 'Non-orthogonal bases'

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...
View full post »

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

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...
View full post »

Similar threads

A Why the triangle inequality is greater than the 2 max{f(x),g(x)}
Replies
1
Views
1K
B Can We Simplify the Taylor Series Expansion for e^(f(x,y))?
Replies
3
Views
2K
B Inverse Functions: Why rewrite as y=f(x) ?
Replies
11
Views
2K
MHB Is $f(x) = xf(1)$ the only solution to the given functional equation?
Replies
3
Views
1K
B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1
Replies
10
Views
2K
MHB Function's Fun f(x^2−2016x)=f(x)⋅x+2016
Replies
3
Views
2K
MHB Proving Equivalence of f(x) and g(x)
Replies
5
Views
1K
MHB Proving Equivalence of f(x) and g(x)
Replies
2
Views
1K
MHB [ASK] Derivative of an Algebraic Fraction find f(0) + f'(0)
Replies
3
Views
2K
MHB Finding $a$ and $b$ for $f(x)=|\lg (x+1)|$
Replies
3
Views
909

Hot Threads

Recent Insights

Back
Top