Question

3+√2 per 3-√2 - 4-√2 per 4+√2

Answer 1

1). (3 + √2) / (3 - √2) dirasionalkan =>
(3 + √2)(3 + √2) / (3 - √2)(3 + √2) =
(3 + √2)² / (9 - 2) =
(9 + 6√2 + 2) / 7 =
(11 + 6√2) / 7 .
2).(4 - √2)(4 - √2) / (4 + √2)(4 - √2) =
(4 - √2)² / (16 - 2) =
(16 - 8√2 + 2)/14 =
(18 - 8√2) / 14
(9 - 4√2) / 7
{(11 + 6√2) - (9 - 4√2)} / 7 =
(2 + 10√2) / 7