Question

if

y = x^2

then

dy/dx = ??

and

dy/dt = ???

Answer 1

t=?
dy/dx=2x
hence derivative is 2x it is simple formula say what is t

Answer 2

$y = {x}^{2} \\ \frac{dy}{dx} = 2x \\ (using \: y = {x}^{n} \\ \frac{dy}{dx} = n {x}^{(n - 1)}$
$y = {x}^{2} \\ \frac{dy}{dt} = 2x \times \frac{dy}{dt} \\ \frac{dy}{dt} (1 - 2x) = 0 \\ \frac{dy}{dt} = 0$