tolong bantu jawab nomor 3,4,5 dan 6 yaaaaaaa

3) f(2) = (2.2-1)³-4
= 3³-4
= 27-4
= 23

g•f = g(f(x))
= g(23)
= ½ (23+4)^⅓ + ½
= ½. 27^⅓ + ½
= ½.3 + ½
= ³/2 + ½
= 2

4) f(3)= |3-2|
= 1

g•f = g(f(x))
= g(1)
= √1-4
= √-3 (tidak terdefinisikan)

5) f(1+2) = f(1) = 1²+1
= 2
g•f = g(f(x))
= g(2)
= 3(2)-1
= 5

6) f(2.2) = 2(2)-1 / 3(2)-5
= 3/1
= 3
g•f = g(f(x))
= g(3)
= 3²+6(3)+9
= 9+18+9
= 36