Soal Matematika 4. 5 Genap

4. 5 soal genap Matematika

  1. Untuk f(x) =, hitunglah masing-masing nilai

    1. f(1) = = 2

    1. f(-t) =

    1. f() = = x =

    1. f(u+1) = =

= =

= (u+2)()

    1. f(x) = = = x+x

    1. f(h+h) = =

=

= (h+h+1)

  1. Untuk f(x) = 2x-1, cari dan sederhanakan f(a+h)-f(a)]/h

f(a+h)-f(a)]/h =

=

=

= 4a+2h

  1. Diketahui (fg)(x) = dan g(x) = x-2, tentukan:

  1. Aturan fungsi f(x)

F(g(x))=

F(x-2)=

F(x-2)=

F(x)=

  1. Syarat yang menjamin eksistensi fungsi komposisi (fg)(x)

(fg)(x)=

Syarat eksistensinya x3

  1. Domain fungsi komposisi Dfg)(x)

Df {x

  1. Misalkan f(x) = , tunjukkan bahwa f(f(x))=x, asalkan a+bc0 dan xa/c

F(f(x)=

=

=

=

=

= x

  1. Cari daerah asal alami masing-masing fungsi berikut!

  1. f(x) =

2x+3

2x

X

Df = {x|x}

= {-3/2, +}

  1. f(x) =

x-9

x

x

xatau x

Df ={x|x}

  1. f(x) =

4x-1

4x

X

Df ={x|x}

  1. f(x)=-

y-625

(y+25)(y-25)

y-25

(y-5)(y+5)

(-5

Df {x|-5}

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