Question

SOMEONE PLEASE HELP 100 points

Answer 1

All real numbers im pretty sure

Explanation:

Answer 2

A) No solution

B) No solution

Explanation:

`A)`
`\mathrm {If}\:|u|\: < \:a,\:a > 0\:\mathrm{then}\:-a\: < \:u\: < \:a` (Which in this case leads to no solution because c cannot be less than 0 logically)

`B)`
`\mathrm {If}\:|u|\: < \:a,\:a > 0\:\mathrm{then}\:-a\: < \:u\: < \:a` (Whether you change the </> sign or not, c cannot be any less than 0 or it will lead to no solution.)