Question

Abhilash and Nandini recently studied so many facts about Earth. They are amused by knowing the fact that on Earth, around 361,419,000 km 2 area is covered with water and 148,647,000 km 2 of the area is covered by the land. Based on the above information, answer the following question:  How to write the area covered by land in its standard form?​

Answer 1

Answer:

lim

x

1+x

−1

By using Rationalization

x→0

lim

x

1+x

−1

×

1+x

+1

1+x

+1

x→0

lim

x(

1+x

+1)

(1−x)−1

=

x→0

lim

x(

1+x

+1)

x

=

1

+1

1

=

2

1