Question

Which of the following is the derivative of y= 1/x2 ?

Answer 1

Step-by-step explanation:

let

y

=

1

x

2

1

x

2

is the same as

x

−

2

⇒

d

y

d

x

=

−

2

⋅

x

−

2

−

1

=

−

2

x

−

3

⇒

d

y

d

x

=

−

2

x

−

3