Question

find the value of (98)5 by binomial theorem.​

Answer 1

Step-by-step explanation:

ANSWER

98

5

=(100−2)

5

=100

5

−

5

C

1

.100

4

.2+

5

C

2

.100

3

2

2

−

5

C

3

.100

2

.2

3

+

5

C

4

.100.2

4

−

5

C

2

=100

5

−10.100

4

+40.100

3

−80.100

2

+80.100−32

=90.100

4

+40.100

3

−80.100+8000−32

=9000000000+40000000−300000+8000−32

=9040000000−800000+7968

=9039200000+7968

=9039207968.