Question

Dik :
f(x)=akar(x^2-4)
g(x)= akar (x-2)
Dit :
a. (f+g)(x)
b. (f-g)(x)
c. (f×g)(x)
d. (f÷g)(x)

tolong di jawab yah

Answer 1

Menurutku sih, jawabannya gini

Answer 2

A. = √(x²-4) + √(x-2)

b. = √(x²-4) - √(x-2)

c. = √(x²-4)(x-2) = √(x-2)².√(x+2) = (x-2)√(x+2)

d. = √(x²-4)/ √(x-2)  * (√(x-2)/√(x-2))
= √{(x²-4)(x-2)}/ (x-2)
= {(x-2)√(x+2)}/ (x-2)
= √(x+2)