Question

Diketahui rumus fungsi f(x)= 2/(x₂-4) tentukan:
a. ƒ(3)
b. nilai k, jika f(k) = 1per 16.

Answer 1

F(x)=2:(x²-4)
a.f(3)=2:(3²-4)
       =2:(9-4)
       =2:5
       =0,4
b.f(k)=1/16
   1/16=2:(x²-4)
   x²-4=2.16/1
x²=32+4
x=√36
x=6