f(2) =
f(4) =
➩ Diketahui :
[tex]\sf \bf \tt f(x) = 3x + 3^{x} - 2![/tex]
➩ Ditanya :
[tex]\sf \bf \tt f(2) = ...?[/tex]
[tex]\sf \bf \tt f(4) = ...?[/tex]
➩ Jawab :
- Menentukan nilai f(2)
[tex]\sf \bf \tt f(x) = 3x + 3^{x} - 2![/tex]
[tex]\sf \bf \tt f(2) = 3(2) + 3^{2} - 2![/tex]
[tex]\sf \bf \tt f(2) = 3(2) + (3×3)-(2×1)[/tex]
[tex]\sf \bf \tt f(2) = 6+ (3×3)-(2×1)[/tex]
[tex]\sf \bf \tt f(2) = 6+ 9-(2×1)[/tex]
[tex]\sf \bf \tt f(2) = 6+ 9-2[/tex]
[tex]\sf \bf \tt f(2) = 15-2[/tex]
[tex]\bold{\underline{\boxed{\pink{\sf \bf \tt f(2) = 13}}}}[/tex]
- Menentukan nilai f(4)
[tex]\sf \bf \tt f(x) = 3x + 3^{x} - 2![/tex]
[tex]\sf \bf \tt f(4) = 3(4) + 3^{4} - 2![/tex]
[tex]\sf \bf \tt f(4) = 3(4) + {3×3×3×3}- 2![/tex]
[tex]\sf \bf \tt f(4) = 3(4) + {9×3×3}- 2![/tex]
[tex]\sf \bf \tt f(4) = 3(4) + {27×3}- 2![/tex]
[tex]\sf \bf \tt f(4) = 3(4) + 81- 2![/tex]
[tex]\sf \bf \tt f(4) = 12 + 81- 2![/tex]
[tex]\sf \bf \tt f(4) = 93- 2![/tex]
[tex]\sf \bf \tt f(4) = 93- (2×1)[/tex]
[tex]\sf \bf \tt f(4) = 93- 2[/tex]
[tex]\bold{\underline{\boxed{\pink{\sf \bf \tt f(4) = 91}}}}[/tex]
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Pelajari lebih banyak lagi tentang fungsi yuk!
- Materi tentang nilai maksimum fungsi : brainly.co.id/tugas/19261601
- Materi tentang fungsi logaritma : brainly.co.id/tugas/13214938
- Materi tentang persamaan dan pertidaksamaan nilai mutlak : brainly.co.id/tugas/42212680
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Detail Jawaban
Kelas : 11 SMA
Mapel : Matematika
Materi : Bab 6 - Fungsi
Kode Kategorisasi : 11.2.6
#BelajarBersamaBrainly
f(x) = 3x + 3^x - 2!
f(2) = 3(2) + 3² - 2 × 1
= 6 + 9 - 2
= 15 - 2
= 13
f(4) = 3(4) + 3⁴ - 2 × 1
= 12 + 81 - 2
= 93 - 2
= 91
[answer.2.content]
