Question

please let me know the answer ​

Answer 1

Answer:

Multiply Both Denominator and numerator by denominator

Step-by-step explanation:

The question becomes 2√1-✓2/1-2

Answer 2

Step-by-step explanation:

2/✓1-✓2

2/1-✓2

2×1+✓2 / 1-✓2×1+✓2. Rationalize

2+2✓2 / 1²-✓2² (a+b) (a- b)

4✓2 / 1-2 ✓2×✓2=2

4✓2 / -1

=-4✓2

hope it helps