tolong di bantu ya ...
Matematika
Desi1311
Pertanyaan
tolong di bantu ya ...
1 Jawaban
-
1. Jawaban cupid85
4a) 1
-------------
2 + √3
= 1 ( 2 - √3 )
-------------------
( 2 + √3 )( 2 - √3 )
= 1 ( 2 - √3 )
----------------------
4 + 2√3 - 2√3 - 3
= 1 ( 2 - √3 )
------------------
1
= 2 - √3
b) 3 - √2
----------------
3 + √2
= ( 3 - √2 )( 3 - √2 )
-----------------------------
( 3 + √2 )( 3 - √2)
= 9 - 3√2 - 3√2 + 2
-----------------------------
9 + 3√2 - 3√2 - 2
= 11 - 6√2
---------------
7