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Pertama semua dijadikan Berpangkat yg koefisiennya 2..
2^6 Log Akar 2^4(x-4) = 2^6 Log 2^(4x-16)1/2 = 2^6 Log 2^(2x-8) = 2x-8/6 = 1/2
dikali silang
4x-16 = 6
4x = 6+16
x = 22/4 = 5 1/2
21. e y= 2 2Log 2x
22. b . 5
= ... kedua ruas pangkatkan 2
64 =
4³ =
4³ =
3 = 2x - 8
2x = 3 + 8
2x = 11
x =
x = 5
21.) y =
y =
log y = log
log y = x . log 2
x =
x' =
y =
jadi fungsi invers : y = ; y > 0
22.) =
=
=
=
=
=
= 5
23.) = - 2
x =
x =