Recent content by Zems

y=-2 and x=4, so the answer in the book is wrong. Thanks, ill have to sort this out with my lecturer.

Homework Statement I came across this problem in my textbook, i think the answer is wrong. I checked on wolfram alpha and got different results. Homework Equations x+y+√(x-y)=2+√6 The Attempt at a Solution The solutions in the book are x=2 y=-2, however when I substituted it...

thanks for all the replies, it was very enlightening. I would like to know about your thesis twofish-quant.

Hi, I've been looking at the Hertzsprung-Russel diagram and was wondering exactly what types of stars collapse to form a black hole? What temperature range/radius etc. turn into black holes. I understand that its most likely the supergiants that form black holes, but what about the giants? Are...