Question

Lim x⇨0 = akar 4 + x - akar 4 - x, per x. berapa ya hasilnya minta bantuannya dong, makasih ^^

Answer 1

Lim x -> 0,
= (√4+x)-(√4-x)/(x) kalikan penyebut atasnya

= [(√4+x)-(√4-x)]/(x)].[(√4+x)+(√4-x)/(√4+x)+(√4-x)]
= [(4+x-4+x)/(x)[(√4+x)+(√4-x)]
= [(x)/(√4+x)+(√4-x)]
masukkan nilai x
= 0/8 = 0