Question

simplify 2 root 3 ( 3 + root 5 ) ( 1 - root 5 ) / 1 + root 5 . it is rational or irrational number ​

Answer 1

Answer:

Step-by-step explanation:

· 2 - √3 ---( 1 ) b ) 2 / ( √5 - √ 3 ) = 2 ( √5 + √3 ) / [ ( √5 - √3 )(√5 + √3 ) ] = 2( √5 + √3 ) / ( 5 - 3 ) = 2 ( √5 + √3 )/ 2