Question

Rationalise 3+√7 3-√7​

Answer 1

Step-by-step explanation:

3+√7/3-√7

by rationalizing we get

(3+√7)× (3+√7)/(3-√7)(3+√7)

= here numerator is in the form of( a+b) ² = a²+b²+2ab and denominator is in the form of (a+b) (a-b) = a²-b²

= (3)²+(√7)²+2×3×√7/(3)²-(√7)²

9+7+6√7/9-7

= 16+6√7/2

taking two common we get

2(8+3√7)/2

the two will cut each other

so ans is 8+3√7

Answer 2

Answer:

here is ur ans

mark me as brainlist