Question

Using a suitable identity, evaluate 9952

Answer 1

Step-by-step explanation:

Given : (995)

2

we can Write (995)

2

as

(995)

2

=(1000−5)

2

According to the equation

(a−b)

2

=a

2

−2ab+b

1

So we get,

Using the formula we can it write it as

(995)

2

=(1000)

2

−2(1000)(5)+(5)

2

On further calculation we get,

(995)

2

=100000−10000+25

(995)

2

=990025