Question

Rasionalkan 9/√7

Jumlah kan (2+√3) •(4+√2)

Rasionalkan 2/√3-7​

Answer 1

Materi : Bentuk Akar dan Pangkat

______________________________

9/√7

= 9(√7)/(√7)²

= 9√7/2

= ( 9/2 )√7

______________________________

( 2 + √3 ) + ( 4 + √2 )

= 6 + √2 + √3

______________________________

2/( √3 - 7 )

= 2( √3 + 7 )/( √3 - 7 )( √3 + 7 )

= 2( √3 + 7 )/( [√3]² - 7² )

= 2( √3 + 7 )/( 3 - 7 )

= 2( √3 + 7 )/(-4)

= ½( - 7 - √3 )

______________________________

Semoga bisa membantu