Question

differentiate (x+2).(x-1) wrt​

Answer 1

Answer:

Let y=

x

x

2

−1

⇒

dx

dy

=

x

2

x

dx

d

(x

2

−1)−(x

2

−1)

dx

d

(x)

⇒

dx

dy

=

x

2

x(2x)−(x

2

−1)

⇒

dx

dy

=

x

2

2x

2

−x

2

+1

⇒

dx

dy

=

x

2

x

2

+1

=1+

x

2

1