Introduction to X 3 X 2 1
What is X 3 X 2 1?
X 3 X 2 1 is a mathematical concept that involves adding, subtracting, multiplying, and dividing numbers. It is an important concept in mathematics that is used to solve many problems. X 3 X 2 1 is often used to solve equations and solve for unknowns.How is X 3 X 2 1 Used?
X 3 X 2 1 is often used in problem solving and other algebraic equations. It is a powerful tool that can be used to determine the value of unknowns, solve equations, and find solutions to complex problems.Why is X 3 X 2 1 Important?
X 3 X 2 1 is important because it is a versatile concept that can be used in a variety of contexts. It can be used to solve equations, find unknowns, and even help to understand other mathematical concepts. Understanding X 3 X 2 1 is important for being able to solve mathematical problems.How to Learn X 3 X 2 1
To learn X 3 X 2 1, it is important to practice solving problems that involve the concept. Additionally, it can be helpful to learn and understand other mathematical concepts that are related to X 3 X 2 1, such as factoring and exponents.Conclusion
X 3 X 2 1 is an important concept in mathematics that can be used to solve equations, find unknowns, and understand other mathematical concepts. To learn X 3 X 2 1, it is important to practice solving problems and understand related mathematical concepts.Related Video:
Questions and Answers:
1. { ((x^2/3)+(x^1/2))*((x^1/3)-(1/(x^1/3))) } / { ((x^1/2)+1/(x^1/2))*(x-(x^1/3)) } =...
[tex]( x^{ \frac{3}{2} } + x^{ \frac{1}{2} }) ( x^{ \frac{1}{3} } - x^{ -\frac{1}{3} } )[/tex]
[tex]( x^{ \frac{1}{2} } + x^{ -\frac{1}{2} }) ( x - x^{ \frac{1}{3} } )[/tex]
[tex] x^{ \frac{1}{2} } (x + 1) x^{- \frac{1}{3} } ( x^{ \frac{2}{3} } + 1) [/tex]
[tex] x^{ -\frac{1}{2} }(x + 1) x^{ \frac{1}{3}}(x^{ \frac{2}{3} } - 1) [/tex]
dicoret coret
=
[tex] \sqrt[3]{x} [/tex]
2. bentuk sederhana dari : (x^1/3-x^1/6) (x^1/2+x)(x^1/2+x^1/3+x^2/3) dibagi (x^4/3-x)(x+x^1/3+x^2/3) dengan x bukan sama dengan 0
Bentuk sederhana dari
[tex] \: \: \: \: \: \frac{ ({x}^{ \frac{1}{3} } - {x}^{ \frac{1}{6} } )( {x}^{ \frac{1}{2} } + x)( {x}^{ \frac{1}{2} } + {x}^{ \frac{1}{3} } + {x}^{ \frac{2}{3} } )}{ ({x}^{ \frac{4}{3} } - x)(x + {x}^{ \frac{1}{3} } + {x}^{ \frac{2}{3} }) } \: \: adalah \: \: \frac{1}{ \sqrt{x} - \sqrt[3]{x} } \\ [/tex]
PembahasanMisal
[tex]y = {x}^{ \frac{1}{6} } \\ \\ \: \: \: \: \: \frac{ ({x}^{ \frac{1}{3} } - {x}^{ \frac{1}{6} } )( {x}^{ \frac{1}{2} } + x)( {x}^{ \frac{1}{2} } + {x}^{ \frac{1}{3} } + {x}^{ \frac{2}{3} } )}{ ({x}^{ \frac{4}{3} } - x)(x + {x}^{ \frac{1}{3} } + {x}^{ \frac{2}{3} }) } \\ \\ = \frac{( {y}^{2} - y)( {y}^{3} + {y}^{6})( {y}^{2} + {y}^{3} + {y}^{4} ) }{ ({y}^{8} - {y}^{6})( {y}^{2} + {y}^{4} + {y}^{6} ) } \\ \\ = \frac{ {y}^{6} ( {y}^{3} + 1)( {y}^{2} + y + 1) }{ {y}^{8}( {y}^{2} - 1)( {y}^{4} + {y}^{2} + 1)} \\ \\ = \frac{ ( {y}^{3} + 1)( {y}^{2} + y + 1) }{ {y}^{2}( {y}^{2} - 1)( {y}^{4} + {y}^{2} + 1)} \\ \\ = \frac{ ( {y}^{2} - y + 1)( {y}^{2} + y + 1) }{ {y}^{2}( y - 1)( {y}^{2} - y + 1)( {y}^{2} + y + 1)} \\ \\ = \frac{1}{ {y}^{2}(y - 1) } \\ \\ = \frac{1}{ {y}^{3} - {y}^{2} } \\ \\ = \frac{1}{ ({x}^{ \frac{1}{2} } - {x}^{ \frac{1}{3} }) } \\ \\ = \frac{1}{ \sqrt{x} - \sqrt[3]{x} } \\ [/tex]
Pelajari Lebih LanjutOperasi Hitung Aljabar
brainly.co.id/tugas/16487987
Bentuk sederhana dari perpangkatan
brainly.co.id/tugas/16579240
Menyederhanakan bentuk aljabar
brainly.co.id/tugas/16685650
Detail JawabanKelas : IX
Mapel : Matematika
Kategori : Bab 1 - Bilangan Berpangkat
Kata Kunci : hasil kali aljabar
Kode : 9.2.1
#AyoBelajar
3. 1. jika x-1/3 =3 maka x^2 + 1/x^2 2. jika x + 1/x = akar 3 maka nilai dari x^3 - 1/x^3
1.
x-1/3 = 3
x=3+1/3=10/3
x²+1/x²=
(10/3)²+1/(10/3)²=
100/9 + 1/(100/9)=
100/9 + 9/100=
(10000+81)/900=
10081/900= 11 181/900
2."nyerah"
4. bila f(x) = x+2/3-x dengan x # 3 maka invers f(x) adalah f^-1(x) adalah..... A. 3 - x / x + 2 dengan x # -2 B. x + 2 / 3 - x dengan x # 3 C. 3x - 2 / x - 1 dengan x # 1 D. x - 2 / x - 3 dengan x # 3 E. 3x - 2 / x + 1 dengan x # -1 Silahkan Jawab dengan Benar Ya ... :)
f(x) = x+2/3-x
y = x+2/3-x
y(3-x) = x+2
3y-xy = x+2
3y-2 = x+xy
3y-2 = x(1+y)
3y-2/1+y = x
f^-1(x) = 3x-2/x+1
5. Please bantu aku.... Jika f(x) = x + 2 per 3 - x dengan x tidak sama dengan 3, fungsi f^-1(x) = .... a. 3 - x per x + 2 dengan x tidak sama dengan 2 b. x + 2 per 3 - x dengan x tidak sama dengan 3 c. x - 2 per x - 3 dengan x tidak sama dengan 3 d. 3x - 2 per x + 1 dengan x tidak sama dengan -1 e. 3x - 2 per x - 2 dengan x tidak sama dengan 1
f(x) = (ax + b)/(cx + d) => f^-1(x) = (-dx + b)/(cx - a)
f(x) = (x + 2)/(3 - x) = (x + 2)/(-x + 3) maka
f^-1(x) = (-3x + 2)/(-x - 1) = (3x - 2)/(x + 1) dengan x ≠ 1
6. |2x + 3| = x + 1 1. |2x + 3| = x + 1 2 x + 3 = x + 1 2 x - ... = 1 - ... x = ... 2. |2x + 3| = (−x − 1) ... = ... ... = ... ... = ... Hp : {... , ... }
|2x + 3| = x + 1
1. |2x + 3| = x + 1
2x + 3 = x + 1
2x - x = 1 - 3
x = -2
2. |2x + 3| = (−x − 1)
2x + x = -1 - 3
3x = -4
x = -4/3
Hp : { -4/3, -2 }
7. 1. |x-2| = x-2 2. |x| = x+2 3. 1 - |2x-5| = 1×1 4. |x-1| = x+3 5. 3 - |x-4| = x
Jawaban:
3
Penjelasan dengan langkah-langkah:
maaf sebesar besarnya kalo salah ya
8. ( x 3/2 + x 1/2) (x 1/3 - x -1/3)
Jawaban:
Penjelasan:
(x 3/2 + x 1/2) (x 1/3 - x -1/3)
= (3x/2 + x/2) (x/3 - x - 1/3)
= x^2/ 2- 3/2 - x/2 + x^2/6 - 1/2 - x/6 ... dikali 6)
= 3x^2 - 9 - 3x + x^2 - 3 - x
= 4x^2 - 4x - 12 ... dibagi 4)
= x^2 - x - 3
9. 1 akar-akar persamaan kuadrat dari x² – 3 x + 2 = 0 adalah ….a. x = - 2 atau x = -1b. x = 2 atau x = -1c. x = - 2 atau x = 1d. x = 2 atau x = 12 akar-akar persamaan kuadrat dari 2x² + 5x + 3 = 0 adalah ….a. x = - 3/2 atau x = -1b. x = 3/2 atau x = -1c. x = - 3/2 atau x = 1d. x = 3/2 atau x = 1
Jawaban:
1. x²-3x+2=0
(x-2)(x-1)=0
x=2 dan x=1
2. 2x²+5x+3=0
(2x+3)(x+1)=0
x=-3/2 dan x=-1
10. Tentukan solusi x dan tuliskan himpunan penyelesaiannya. 1. (x+ 1)^2 - (x - 1)^2 = x + 9 2. (3x - 1)(x + 1) = 3x^2 3. (x + 4) (x - 1) = (x + 2)(x - 3) 4. (X - 3)^2 + (x + 1)^2 = (x - 2)^2 + (x + 3)^2
1. [x^2 + 2x + 1] - [x^2 - 2x + 1] = x + 9
4x = x + 9
3x = 9
x = 3
11. 3 x 1\2 = 4 1\3 x 3\8 =2 2\3 x 1 1\2 = 1\2 x 1\3 x 6 = 6 1\2 x 2\3 x 13 =
Jawaban:
wadaw.............. uuhhh
12. Diketahui spl sebagai berikut : (1). 2 x 1 + x 2 – x 3 = 2 (2). x 1 – x 2 + x 3 = 1 (3). –x 1 + 2 x 2 – x 3 = 3 tentukan nilai x 1 , x 2 , dan x 3 dengan cara : a. eliminasi b. metode cramer
Jawaban:
b. metode cramer
semoga bermanfaat ya
13. Pembuktian rumus mclaurin 1. 1/1-x = 1 + x + x^2 + x^3 + .... 2. e^x = 1 + x/1! + x^2/2! + x^3/3! + ....
Jawab:
Penjelasan dengan langkah-langkah:
[tex]deret~mclaurin~ditulis~sebagai~berikut:\\f(x)=f(0)+\frac{x}{1!}f'(0)+\frac{x^2}{2!}f''(0)+...\frac{x^n}{n!}f^n(0)\\\\\\f(x)=\frac{1}{1-x}~->f(0)=1\\\\f'(x)=\frac{1}{(1-x)^2}~->f'(0)=1\\\\f''(x)=\frac{2}{(1-x)^3}~->f''(0)=2\\\\f'''(x)=\frac{6}{(1-x)^4}~->f'''(0)=6\\\\\\maka~\frac{1}{1-x}=1+\frac{x}{1!}(1)+\frac{x^2}{2!}(2)+\frac{x^3}{3!}(6)+...\\\\~~~~~~~~~~~~~~~=1+x+x^2+x^3+...\\[/tex]
[tex]2.\\\\f(x)=e^x~->f(0)=1\\\\f'(x)=e^x~->f'(0)=1\\\\f''(x)=e^x~->f''(0)=1\\\\f'''(x)=e^x~->f'''(0)=1\\\\\\maka~e^x=1+\frac{x}{1}(1)+\frac{x^2}{2!}(1)+\frac{x^3}{3!}(1)+...\\\\~~~~~~~~~~~~=1+x+\frac{x^2}{2!}+\frac{x^3}{3!}+...[/tex]
14. 1. | 2x+3 | ≤ | x-2| 2. 2 | x | + | x-1 | ≤ 2 3. x | x | ≤ | x-1 | 4. | 2x-3 | ≤ | x+2 |
1. -5<=x<=-1/3
2. -1/3<=x<=1
3. ....
4. 1/3<=x<=5
15. Jabarkan lalu sederhanakan[x ^3 – (x 1 + x 2 + x 1 )x ^2 + (x 1 x 2 + x 1 x 3 + x 2 x 3 )x – x 1 x 2 x 3 ][x – x 4 ]Soal Suku Banyak
x+2)(x-3)
x+x+2-3
x²+1
b.(2x-1)(x²+3y)
2x+3y-1+x²
5xy-1+x²
c.(x²-y)(x²+3y)
x²-x²-y+3y
x²-3y²
16. kenapa -1 pada pembahasan ini menjadi 1/2log 2? tolong penjabarannya 1/2 log (x² - 3) - 1/2 log x = -1 1/2 log (x²- 3)/ x = 1/2 log 2 (x²-3)/x =2 x² - 3 = 2x x² -2x -3 = 0 (x - 3)(x + 1) =0 x= 3 atau x = -1
1/2 log (x² - 3) - 1/2 log x = -1
-²log (x²-3) + ²log x = ²log (2)⁻¹
-²log (x²-3) + ²log x = ²log (2)⁻¹
²log x - ²log (x²-3) = ²log (1/2)
x/(x²-3) = 1/2
2x = x²-3
0 = x²-2x-3
0 = (x-3)(x+1)
x = 3 atau x = -1karena pada logaritma, alog a = 1, di mana a > 0, dan a tidak sama dengan 1.
pada sifat logaritma
(a^m)log (a^n) = n/m . alog a = n/m
maka
-1 pada logaritma bisa berbentuk :
-1 alog a = alog a^-1 = alog 1/a
atau
-1 alog a = (a^-1)log a = (1/a)log a
sehingga
-1 2log 2 = 2log 1/2
atau
-1 . 2log 2 = (1/2)log 2
17. 1) x-1 per 2 - x+1 per 2 = 5 - x+ 2 per 4 2) 3 per x+2 - 5 per x = - 2 per x - 1 3) 2 per x -2 + 3 per x = 5 per x-4
Jawaban dan penyelesaian terlampirini yg no 3 ya............
18. Himpunan penyelesaian dari pertidaksamaan |2x -1| ≤ |x + 2| adalah *{x | x < -1/3 atau x > 2 }{x | -1/3 < x < 2 }{x | 1/3 ≤ x ≤ 2 }{x | -1/3 ≤ x ≤ 2 }{x | x ≤ -1/3 atau x ≥ 2 }
Jawaban:
jawabann nya c yaaaaaaa
19. Diketahui SPL sebagai berikut : (1). 2 x 1 + x 2 – x 3 = 2 (2). X 1 – x 2 + x 3 = 1 (3). –x 1 + 2 x 2 – x 3 = 3 Tentukan nilai x 1 , x 2 , dan x 3 dengan cara : a. Eliminasi b. Metode cramer.
a. Eliminasi
Dari SPL (1) :
2x1 + x2 – x3 = 2
Dari SPL (2) :
x1 – x2 + x3 = 1
Dikurangi SPL (2) dengan SPL (1) :
2x1 + 2x2 = 3
Dari SPL (3) :
–x1 + 2x2 – x3 = 3
Dikurangi SPL (3) dengan SPL (1) :
x2 = 1
Substitusi nilai x2 ke SPL (2) :
x1 – 1 + x3 = 1
x1 + x3 = 2
Dari SPL (3) :
–x1 + 2(1) – x3 = 3
–x1 + 2 – x3 = 3
Substitusi nilai x1 + x3 = 2 ke SPL (3) :
–2 + 2 – x3 = 3
x3 = 1
Maka, nilai x1 = 1, x2 = 1, dan x3 = 1.
b. Metode Cramer
Diketahui SPL :
2x1 + x2 – x3 = 2
x1 – x2 + x3 = 1
–x1 + 2x2 – x3 = 3
Dituliskan dalam bentuk matriks :
2 1 –1 | 2
1 –1 1 | 1
–1 2 –1 | 3
Dengan menggunakan metode Cramer, maka :
x1 = | 2 1 –1 |
| 1 –1 1 |
= (2 × 1) – (1 × –1) + (–1 × 1)
= 2 + 1 – (–1)
= 1
x2 = | 2 1 –1 |
| –1 2 –1 |
= (2 × –1) – (1 × 2) + (–1 × –1)
= –2 – 2 + 1
= 1
x3 = | 2 1 –1 |
| –1 1 3 |
= (2 × 3) – (1 × 1) + (–1 × –1)
= 6 – 1 – (–1)
= 1
Maka, nilai x1 = 1, x2 = 1, dan x3 = 1.
20. Tentukan angka satuan dari hasil (1) + (1 x 2) + (1 x 2 x 3) + (1 x 2 x 3 x 4) + .... + (1 x 2 x 3 x .... x 21)
Jawabannya (1x2x3x4x5) + .. + (1x2x3x4x5x6x7x8x9x10x11x12x13x14x15x16x17x18x19x20x21)
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