Why doesn't the first term in this equation appear?
42806
Environment aligned doesn't output first part in bracket
80386
Why does a $1/2$ appear in this simple capacitor equation?
151655
Why does Mathematica give no output?
156636
The Existence of the $^1D$ term and the non-existence of the $^3D$ term?
51719
Why is Solve returning an empty list?
41655
Simple equation for $x$ but getting no proof.
57179
Chemical equation with heat of formation
86548
First-order trigonometric differential equation
22872
How to apply coefficient term for factors and interactive terms in a linear equation?
48756
Why are derivatives in interaction terms treated differently from derivatives in the kinetic term?
55188
Second order ODE - why the extra X for the solution?
91684
Prove the following equation(much needed help):
125999
When does a system of equations have no solution?
69854
Why is there a minus sign in this wave equation derivation?
71360
How do I represent the following equations
16474
Numerical solution to PDE seems to contradict initial values
8276
How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$?