Question

find the value of a and b ​

Answer 1

Step-by-step explanation:

hope u understand the answer

Answer 2

I couldn't do the second one but here's the first one:

Explanation:- I rationalised the fraction ( example :- 2/ √2-1 = 2/✓2-1 × √2+1 / √2+1 ) so basically we multiply with the denominator with only the signs changed.

step 1- I rationalised with the denominator.

step 2- I multiplied both the sides(note :- if u see a plus and minus denominator like 2/√2-1 × 2/√2+1 then u can also apply a²-b² formula which is (a+b)-(a-b) i.e, 2/√2-1 × 2/√2+1 = 2-1 ) I broke it down so it becomes easy .

step 3- I kept multiplying and broke down √9 = 3 because it's 3's square like 3×3 = 9

step 4- I got the answer i.e, 11-6√3

.•. a = 11 , b = -6

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