I'm just doing some reading on stars and I've hit a problem which I can't solve.
According to a book I'm using it claims the amount of hydrogen converted in the Sun over it's lifetime so far is 5.4x10^55. I roughly agree with this figure using the method this author calculates the number. He...
Homework Statement
What I want to show is this:
∫|x+y| ≤ ∫|x| + ∫|y|
Homework Equations
|x+y| ≤ |x| + |y|
The Attempt at a Solution
So I thought if I used the triangle inequality I could get to something along the lines of:
Lets g belong to the real numbers
∫|x+y| =...