"This system cannot be solved with the methods available to Solve" What should be done in such case?

Question

What can I do to solve this task?

Solve[Power[x, 2] + Power[y, 2] + 1 == cos[Power[x, 2]*Power[y, 2]], {x, 
  y}]

score 2 · Accepted Answer · answered May 28 '21 at 06:14

2

Reduce[Power[x, 2] + Power[y, 2] + 1 == 
  Cos[Power[x, 2]*Power[y, 2]], {x, y}, Reals]

x==0&&y==0

answered May 28 '21 at 06:14

ciao

thank you! Cheers – Queno May 28 '21 at 07:02
1

Also, Solve[Power[x, 2] + Power[y, 2] + 1 == Cos[Power[x, 2]*Power[y, 2]], {x, y}, Reals, Method -> Reduce] – Bob Hanlon May 29 '21 at 15:39

1 Answers1