Question

Rationalise the denominator.
√7-1/√7+1​

Answer 1

Answer:

please refer to the attachment and mark my answer as branliest

Answer 2

Answer:

(√7-1)/(√7+1)

(√7-1)(√7-1)

(√7+1)(√7-1)

(√7-1)²

(√7+1)(√7-1)

using

• (a-b)(a+b)=a²-b²
• (a-b)²=a²+b²-2ab

(√7)²+(1)²-2(√7)(1)

(√7)²-(1)²

7+1-2√7

7-1

8-2√7

6

2(4-√7)

6

(4-√7)

3