Question

Bantuannya tolong:)

sama penjelasan hehe




*Mtk aku parah bgt yah. Padahal sbm tinggal 3 bulan:')
**Yang cuma mau poin jangan jawab!

Answer 1

Verified answer

(x^(-1) - y^(-1))/(x^(1/2) + y^(1/2))
= (1/x - 1/y)/(√x + √y)
= ((y - x)/xy)/(√x + √y)
= (y - x)/[ (xy)(√x + √y) ]
= (√x + √y)(-√x + √y)/[ (xy)(√x + √y) ]
= (-√x + √y)/(xy)
= (√y - √x)/xy