f uchun yechish
f=\frac{x^{\frac{3}{2}}}{2x^{2}+1}
x>0
Grafik
Viktorina
Linear Equation
5xshash muammolar:
f ^ { - 1 } ( x ) = \frac { 2 x ^ { 2 } + 1 } { \sqrt { x } }
Baham ko'rish
Klipbordga nusxa olish
\frac{1}{f}x=\frac{2x^{2}+1}{\sqrt{x}}
Shartlarni qayta saralash.
1x=fx^{-\frac{1}{2}}\left(2x^{2}+1\right)
f qiymati 0 teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini f ga ko'paytirish.
1x=2fx^{-\frac{1}{2}}x^{2}+fx^{-\frac{1}{2}}
fx^{-\frac{1}{2}} ga 2x^{2}+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
1x=2fx^{\frac{3}{2}}+fx^{-\frac{1}{2}}
Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. -\frac{1}{2} va 2 ni qo‘shib, \frac{3}{2} ni oling.
2fx^{\frac{3}{2}}+fx^{-\frac{1}{2}}=1x
Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.
2fx^{\frac{3}{2}}+x^{-\frac{1}{2}}f=x
Shartlarni qayta saralash.
\left(2x^{\frac{3}{2}}+x^{-\frac{1}{2}}\right)f=x
f'ga ega bo'lgan barcha shartlarni birlashtirish.
\left(2x^{\frac{3}{2}}+\frac{1}{\sqrt{x}}\right)f=x
Tenglama standart shaklda.
\frac{\left(2x^{\frac{3}{2}}+\frac{1}{\sqrt{x}}\right)f}{2x^{\frac{3}{2}}+\frac{1}{\sqrt{x}}}=\frac{x}{2x^{\frac{3}{2}}+\frac{1}{\sqrt{x}}}
Ikki tarafini 2x^{\frac{3}{2}}+x^{-\frac{1}{2}} ga bo‘ling.
f=\frac{x}{2x^{\frac{3}{2}}+\frac{1}{\sqrt{x}}}
2x^{\frac{3}{2}}+x^{-\frac{1}{2}} ga bo'lish 2x^{\frac{3}{2}}+x^{-\frac{1}{2}} ga ko'paytirishni bekor qiladi.
f=\frac{x^{\frac{3}{2}}}{2x^{2}+1}
x ni 2x^{\frac{3}{2}}+x^{-\frac{1}{2}} ga bo'lish.
f=\frac{x^{\frac{3}{2}}}{2x^{2}+1}\text{, }f\neq 0
f qiymati 0 teng bo‘lmaydi.
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