/sci/ - Science & Math

Where can I find the solutions for Calculus and Analytic Geometry 9th edition by Thomas and Finney?
I searched libgen, found nothing so I googled for it but the only website that had it wanted credit card information. The other editions are very different from the 9th one so I can't really use those.


And also in general, where do you find solutions for books for free?

Why have there been no major breakthroughs for 30 years? Our technology is not fundamentally different than it was 30 years. Computers still run on silicon transistors, we have no novel forms of transportations or energy sources, etc.