Question

n-x=4° find the values of x and n

Answer 1

Step-by-step explanation:

Correct option is

B

(−

2

1

,−

2

3

)

(1+x)

n

=1+nx+

2

n(n−1)

x

2

...∞

Now nx=

4

3

and n(n−1)x

2

=

16

15

nx(nx−x)=

16

15

4

3

−x=

4

5

...(nx=

4

3

)

x=

2

−1

Therefore n=

2

−3