Sintiabela M
12 September 2025 02:38
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Sintiabela M
12 September 2025 02:38
Pertanyaan
berikan 5 soal serta jawaban tentang elips
6
1
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Nadiah C
13 September 2025 12:13
Rumus :
a = angka lebih besar
b = angka lebih kecil
horizontal
X² / a² + Y² / b² = 1
vertikal
X² / b² + Y² / a² = 1
contoh soal:
1. X² / 100 + Y² / 36 = 1
penyelesaian
a = √100 = 10
b = √36 = 6
" c ² = √ a ² - b ² "
c ² = √ 10 ² - 6 ²
c ² = √ 100 - 36
c ² = √64
c = 8
=> horizontal
2. X ² / 16 + Y ² / 25 = 1
penyelesaian
a = √16 = 4
b = √25 = 5
" c ² = √ a ² - b ² "
c ² = √4 ² -5 ²
c ² = √16 - 25
c ² = √9
c = 3
=> vertikal
3. X² / 169 + Y² / 25 = 1
penyelesaian
a = √169 = 13
b = √25 = 5
" c ² = √ a ² - b ² "
c ² = √13 ² - 5 ²
c ² = √ 169 - 25
c ² = √144
c = 12
=> horizontal
4. X² / 289 + Y² / 64 = 1
penyelesaian
a = √289 = 17
b = √64 = 8
" c ² = √ a ² - b ² "
c ² = √ 17 ² - 8 ²
c ² = √ 289 - 64
c ² = √225
c =15
=> horizontal
5. X² + Y² / 4 = 1
penyelesaian
a = √4 = 2
b = 1
" c ² = √ a ² - b ² "
c ² = √ 2 ² -1 ²
c ² = √ 4 - 1
c = √3
=> horizontal
· 5.0 (1)
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