tolong di jawab dong kak 1) lim x mendekati 3 = √x+4 - √2x+1/ x-3.
Matematika
stmunaaprilia
Pertanyaan
tolong di jawab dong kak
1) lim x mendekati 3 = √x+4 - √2x+1/ x-3.
1) lim x mendekati 3 = √x+4 - √2x+1/ x-3.
1 Jawaban
-
1. Jawaban Robinn
Lim √x + 4 - √2x + 1 / x - 3
x→3
Lim x + 4 - (2x + 1)
x→3 .. / (x - 3)(√x + 4)(√2x + 1)
Lim x + 4 - 2x - 1
x→3 .. / (x - 3)(√x + 4)(√2x + 1)
Lim -x + 3
x→3 .. / (x - 3)(√x + 4)(√2x + 1)
Lim -(x - 3) / (x - 3)(√x + 4)(√2x + 1)
x→3
Lim -1 / (√x + 4)(√2x + 1)
x→3
= -1 / (√3 + 4)(√2(3) + 1)
= -1 / (√7)(√6 + 1)
= -1 / (√7)(√7)
= -1/7