Question

if y=2x then dy/dx=?

Answer 1

u can cancel d and d 

u get y/x

y/x = 2x/x 
     = 2
hence ur answer is 2 

hope it helped

Answer 2

If y = 2x then dy/dx = 2

Given :

y = 2x

To find :

The value of dy/dx

Solution :

Step 1 of 2 :

Write down the given function

Here the given function is

y = 2x

Step 2 of 2 :

Find the value of dy/dx

$\displaystyle \sf{y = 2x }$

Differentiating both sides with respect to x we get

$\displaystyle \sf{ \frac{dy}{dx} = \frac{d}{dx} (2x) }$

$\displaystyle \sf{ \implies \frac{dy}{dx} = 2 \frac{d}{dx} ( {x}^{1} ) }$

$\displaystyle \sf{ \implies \frac{dy}{dx} = 2 \times 1 \times {x}^{1 - 1} \: \: \: \bigg[ \: \because \: \frac{d}{dx}( {x}^{n} ) = n {x}^{n - 1} \bigg] }$

$\displaystyle \sf{ \implies \frac{dy}{dx} = 2 \times {x}^{0} }$

$\displaystyle \sf{ \implies \frac{dy}{dx} = 2 \times 1 }$

$\displaystyle \sf{ \implies \frac{dy}{dx} = 2 }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ let 5f(x)+ 3f(1/x)=x+2 and y= xf(x) . then x=1 point dy/dx=?

https://brainly.in/question/19870192

2. Let f(1) = 3,f' (1)=- 1/3,g (1)=-4 and g' (1) =-8/3

The derivative of √[[f(x)]^2+ [g (x)]^2] W. r. to. x. is

https://brainly.in/question/18312318

#SPJ3