Seja o valor da área da região R equals open curly brackets left parenthesis x comma y right parenthesis element of straight real numbers squared colon x to the power of 4 less or equal than y less or equal than x space e space 0 less or equal than x less or equal than 1 close curly brackets. Então, é correto afirmar que: 1. A space equals space 3 2. A space equals space 1 3. A 3 over 10 4. A space equals space 7 over 10 5. A space equals space 1 fifth