Question

Ask My Questions/Answer in Math​

Answer 1

Answer:

4.

Step-by-step explanation:

(√11-√7)(√11+√7) is in the form  of (a+b) (a-b)

(a+b)(a-b) = a² - b²

(√11-√7)(√11+√7)

=> (√11)² - (√7)²

=> 11 - 7

=> 4.