Question

Diketahui f[x]=2x+3 / x-1 IxI dan g[x]=x²+2
tentukan a. [f-g] [2]
b.[f:g] [3]

help meepliss.....

Answer 1

A. (f-g) (2) = f(2) - g(2)
    = {[2(2)+3] / [(2)-1]} - {(2)² + 2}
    = 7/1 - 6 = 1

b. (f/g) (3) = f(3) / g(3)
    = {[2(3) + 3] / [(3) - 1]} / {(3)² +2}
    = (9/2) / (11/1)
    = (9/2) (1/11)
    = 9/22

Kalau tidak salah seperti itu, kalau ada kesalahan mohon dikoreksi