If x=2+2√/3, x²+2/x²​

Answers 2

Step-by-step explanation:

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If x=2+

3

then find the value of x

2

+

x

2

1

.

Easy

Solution

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x=2+

3

To find :x

2

+

x

2

1

Sol : x=2+

3

x

2

=(2+

3

)

2

=4+3+4

3

=7+4

3

x

1

=

2+

3

1

x

1

=

2−

3

2−

3

×

2+

3

1

x

1

=

4−3

2−

3

=

1

2−

3

(

x

1

)

2

=(2−

3

)

2

x

2

1

=4+3−4

3

=7−4

3

∴x

2

+

x

2

1

=7+4

3

+7−4

3

=14

∴x

2

+

x

2

1

=14

Solution:-

x=2+

3

To find :x

2

+

x

2

1

Sol : x=2+

3

x

2

=(2+

3

)

2

=4+3+4

3

=7+4

3

x

1

=

2+

3

1

x

1

=

2−

3

2−

3

×

2+

3

1

x

1

=

4−3

2−

3

=

1

2−

3

(

x

1

)

2

=(2−

3

)

2

x

2

1

=4+3−4

3

=7−4

3

∴x

2

+

x

2

1

=7+4

3

+7−4

3

=14

∴x

2

+

x

2

1

=14

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Other related questions that may help you

the curved surface area of a right circular cone is 12320cm^2 if the radius of its base is 56 cm find its height rngqvjdsmpshort story of last Sunday, when Dinayak was performing in the ' Dance India Dance ' programme, it was a do or die situation for him​. ​

Answer:

Explanation:

Given:

radius of the base of the  cone =56cm

We know that curve d surface area of a cone=πrl.

Given that curved surface area of a cone=12320.

πrl=12320

7

22

​

∗56∗l=12320

22∗8∗l=12320

176∗l=12320

Solution:

Given:

radius of the base of the cone =56cm

We know that curve d surface area of a cone=πrl.

Given that curved surface area of a cone=12320.

πrl=12320

7

22

∗56∗l=12320

22∗8∗l=12320

176∗l=12320

l=

176

12320

=70.

We know that height of the cone,

h=

l

2

−r

2

=

70

2

−56

2

=

4900−3136

=

1764

=42.

Therefore the height of the cone =42m.

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Answer:

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-30 divided by -7, find remainder and quotient ​

4.286

Step-by-step explanation:

-30/-7

first minus and minus will get cancel

thrn divide 30/7

you will get 4.285714.....

Answer:

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Explanation:

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Answer:

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