Kalkulator Diferensiasi Implisit dengan Langkah-langkah
Hitung turunan implisit langkah demi langkah
Kalkulator diferensiasi implisit akan menghitung turunan pertama dan kedua dari suatu fungsi implisit dengan menganggap $$$y$$$ sebagai fungsi dari $$$x$$$ atau $$$x$$$ sebagai fungsi dari $$$y$$$, beserta langkah-langkahnya.
Masukan Anda
Temukan $$$\frac{d}{dx} \left(x^{3} + y^{3} = 2 x y\right)$$$.
Solusi
Turunkan secara terpisah kedua ruas persamaan (anggap $$$y$$$ sebagai fungsi dari $$$x$$$): $$$\frac{d}{dx} \left(x^{3} + y^{3}{\left(x \right)}\right) = \frac{d}{dx} \left(2 x y{\left(x \right)}\right)$$$.
Turunkan ruas kiri dari persamaan.
Turunan dari jumlah/selisih adalah jumlah/selisih dari turunan:
$${\color{red}\left(\frac{d}{dx} \left(x^{3} + y^{3}{\left(x \right)}\right)\right)} = {\color{red}\left(\frac{d}{dx} \left(x^{3}\right) + \frac{d}{dx} \left(y^{3}{\left(x \right)}\right)\right)}$$Terapkan aturan pangkat $$$\frac{d}{dx} \left(x^{n}\right) = n x^{n - 1}$$$ dengan $$$n = 3$$$:
$${\color{red}\left(\frac{d}{dx} \left(x^{3}\right)\right)} + \frac{d}{dx} \left(y^{3}{\left(x \right)}\right) = {\color{red}\left(3 x^{2}\right)} + \frac{d}{dx} \left(y^{3}{\left(x \right)}\right)$$Fungsi $$$y^{3}{\left(x \right)}$$$ merupakan komposisi $$$f{\left(g{\left(x \right)} \right)}$$$ dari dua fungsi $$$f{\left(u \right)} = u^{3}$$$ dan $$$g{\left(x \right)} = y{\left(x \right)}$$$.
Terapkan aturan rantai $$$\frac{d}{dx} \left(f{\left(g{\left(x \right)} \right)}\right) = \frac{d}{du} \left(f{\left(u \right)}\right) \frac{d}{dx} \left(g{\left(x \right)}\right)$$$:
$$3 x^{2} + {\color{red}\left(\frac{d}{dx} \left(y^{3}{\left(x \right)}\right)\right)} = 3 x^{2} + {\color{red}\left(\frac{d}{du} \left(u^{3}\right) \frac{d}{dx} \left(y{\left(x \right)}\right)\right)}$$Terapkan aturan pangkat $$$\frac{d}{du} \left(u^{n}\right) = n u^{n - 1}$$$ dengan $$$n = 3$$$:
$$3 x^{2} + {\color{red}\left(\frac{d}{du} \left(u^{3}\right)\right)} \frac{d}{dx} \left(y{\left(x \right)}\right) = 3 x^{2} + {\color{red}\left(3 u^{2}\right)} \frac{d}{dx} \left(y{\left(x \right)}\right)$$Kembalikan ke variabel semula:
$$3 x^{2} + 3 {\color{red}\left(u\right)}^{2} \frac{d}{dx} \left(y{\left(x \right)}\right) = 3 x^{2} + 3 {\color{red}\left(y{\left(x \right)}\right)}^{2} \frac{d}{dx} \left(y{\left(x \right)}\right)$$Dengan demikian, $$$\frac{d}{dx} \left(x^{3} + y^{3}{\left(x \right)}\right) = 3 x^{2} + 3 y^{2}{\left(x \right)} \frac{d}{dx} \left(y{\left(x \right)}\right)$$$.
Turunkan ruas kanan persamaan.
Terapkan aturan kelipatan konstanta $$$\frac{d}{dx} \left(c f{\left(x \right)}\right) = c \frac{d}{dx} \left(f{\left(x \right)}\right)$$$ dengan $$$c = 2$$$ dan $$$f{\left(x \right)} = x y{\left(x \right)}$$$:
$${\color{red}\left(\frac{d}{dx} \left(2 x y{\left(x \right)}\right)\right)} = {\color{red}\left(2 \frac{d}{dx} \left(x y{\left(x \right)}\right)\right)}$$Terapkan aturan hasil kali $$$\frac{d}{dx} \left(f{\left(x \right)} g{\left(x \right)}\right) = \frac{d}{dx} \left(f{\left(x \right)}\right) g{\left(x \right)} + f{\left(x \right)} \frac{d}{dx} \left(g{\left(x \right)}\right)$$$ pada $$$f{\left(x \right)} = x$$$ dan $$$g{\left(x \right)} = y{\left(x \right)}$$$:
$$2 {\color{red}\left(\frac{d}{dx} \left(x y{\left(x \right)}\right)\right)} = 2 {\color{red}\left(\frac{d}{dx} \left(x\right) y{\left(x \right)} + x \frac{d}{dx} \left(y{\left(x \right)}\right)\right)}$$Terapkan aturan pangkat $$$\frac{d}{dx} \left(x^{n}\right) = n x^{n - 1}$$$ dengan $$$n = 1$$$, dengan kata lain, $$$\frac{d}{dx} \left(x\right) = 1$$$:
$$2 x \frac{d}{dx} \left(y{\left(x \right)}\right) + 2 y{\left(x \right)} {\color{red}\left(\frac{d}{dx} \left(x\right)\right)} = 2 x \frac{d}{dx} \left(y{\left(x \right)}\right) + 2 y{\left(x \right)} {\color{red}\left(1\right)}$$Dengan demikian, $$$\frac{d}{dx} \left(2 x y{\left(x \right)}\right) = 2 x \frac{d}{dx} \left(y{\left(x \right)}\right) + 2 y{\left(x \right)}$$$.
Dengan demikian, kita memperoleh persamaan linier berikut terhadap turunan: $$$3 x^{2} + 3 y^{2} \frac{dy}{dx} = 2 x \frac{dy}{dx} + 2 y$$$.
Dengan menyelesaikannya, kita memperoleh bahwa $$$\frac{dy}{dx} = \frac{3 x^{2} - 2 y}{2 x - 3 y^{2}}$$$.
Jawaban
$$$\frac{dy}{dx} = \frac{3 x^{2} - 2 y}{2 x - 3 y^{2}}$$$A