Question

please solve this 20th Q​

Answer 1

Answer:

Idon't know dear iam so sorry

Step-by-step explanation:

please mark me brainliest

Answer 2

Step-by-step explanation:

1/√9-√8 = 1/√9 -√8 × √9+√8/√9 +√8

(Multiplying and dividing by conjugate of dinominator)

√9+√8/(9)^2-(8)^2 = 3-2√2/9-8

= 3-2√2.

Therefore Ans. is 3-2√2.