English, asked by abose5492, 2 months ago

the value 4√3√2^2 of is
(a)2^-1/6
(b)2^-6
(c)2^1/6
(d)2^6​

Answers

Answered by MissShizuka56
3

Answer:

Let us first expand the expression (x+1)

6

+(x−1)

6

using binomial theorem as shown below:

(x+1)

6

=

6

C

0

x

6

+

6

C

1

x

5

+

6

C

2

x

4

+

6

C

3

x

3

+

6

C

4

x

2

+

6

C

5

x

1

+

6

C

6

(x−1)

6

=

6

C

0

x

6

6

C

1

x

5

+

6

C

2

x

4

6

C

3

x

3

+

6

C

4

x

2

6

C

5

x

1

+

6

C

6

Now,

(x+1)

6

+(x−1)

6

=[

6

C

0

x

6

+

6

C

1

x

5

+

6

C

2

x

4

+

6

C

3

x

3

+

6

C

4

x

2

+

6

C

5

x

1

+

6

C

6

]+[

6

C

0

x

6

6

C

1

x

5

+

6

C

2

x

4

6

C

3

x

3

+

6

C

4

x

2

6

C

5

x

1

+

6

C

6

]

=2[

6

C

0

x

6

+

6

C

2

x

4

+

6

C

4

x

2

+

6

C

6

]

=2[x

6

+15x

4

+15x

2

+1]

By putting x=

2

, we get:

(

2

+1)

6

+(

2

−1)

6

=2[(

2

)

6

+15(

2

)

4

+15(

2

)

2

+1]

=2[8+(15×4)+(15×2)+1]

=2[8+60+30+1]

=2×99

=198

Hence, (

2

+1)

6

+(

2

−1)

6

=198.

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