Question

the number (2-√2)(2+√2) is an irrational number. true or false​

Answer 1

FALSE , IT IS RATIONAL .

STEP BY STEP EXPLANATION GIVEN IN THE ABOVE PIC .

Answer 2

Answer:

rational number

Step-by-step explanation:

• (2-√2)(2+√2). [a-b][a+b]=a²-b²
• 2²-(√2)²
• 4-2=2
• so "2"is a rational number.