Question

बालक या शब्दाचे लिंग ओळखा ?

​

Answer 1

Answer:

Consider y=

x

. Let x=25 and Δ x=0.3.

Then,

Δy=

x+Δx

−

x

=

25.3

−

25

=

25.3

−5

⇒

25.3

=Δy+5

Now, dy is approximately equal to Δy and is given by,

dy=(

dx

dy

)Δx=

2

x

1

(0.3) [as y=

x

]

=

2

25

1

(0.3)=0.03

Hence, the approximate value of

25.3

is 5+.03=5.03