
Pertidaksamaan Irrasional
Presentation
•
Mathematics
•
10th Grade
•
Medium
abdul haris
Used 13+ times
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5 Slides • 6 Questions
1
Pertidaksamaan Irrasional
pertidaksamaan bentuk akar
2
Bentuk umum pertidaksamaan irrasional
f(x)≤ c
f(x)≤g(x)
f(x)≤g(x)
dengan syarat f(x)≥0 dan g(x)≥0
3
langkah penyelesaian pertidaksamaan irasional :
tentukan interval nilai x yang memenuhi syarat
kuadratkan kedua ruas untuk menghilangkan akar
buat ruas kanan jadi nol
ubah ruas kiri menjadi bentuk-bentuk faktor linear
tentukan pembuat nilai nol dan garis bilangan
tentukan tanda daerah dan daerah penyelesaian
cari irisan antara daerah syarat dan daerah penyelesaian
4
contoh soal :
tentukan penyelesaian dari
2x−4<2
3−x<2x+1
x2+2x−8>4x2−4x
5
Multiple Choice
Himpunan penyelesaian dari
{x≤8}
{27≤x<8}
{x≤5}
{x≥27}
6
Multiple Choice
Penyelesaian dari pertidaksamaan (x2−3x)<2 adalah . . . .
{−1<x≤0}
{3≤x<4}
{−1<x≤0 atau 3≤x<4}
{−1<x<4}
7
Multiple Choice
himpunan penyelesaian dari x+3>2x−4 adalah ...
2≤x<7
−3≤x≤2 atau x≥7
2<x<7
−3≤x≤2
8
Multiple Choice
Himpunan penyelesaian dari x2−2x−3≤2x+2 adalah ....
1≤x≤5
x≤3
1≤x≤3 atau x≥5
3≤x≤5
9
tentukan penyelesaian dari:
4x−3<x
x2−7x+6≥2x
10
Multiple Choice
Himpunan penyelesaian dari −1−x≥x+3 adalah ....
{x : x≤1}
{x : −5≤x≤2}
{x : x ≤−1}
{x : x≤−2}
11
Multiple Choice
Solusi pertidaksamaan
5≤x≤10
x≤5 atau x≥10 x>10
x≤5
Pertidaksamaan Irrasional
pertidaksamaan bentuk akar
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