Question

2. Simplify.
1 3
(a) +
-3 4​

Answer 1

Step-by-step explanation:

Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term platino, meaning "little silver". ... Platinum is one of the least reactive met