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a= 2 3+ 5∴ a 1= 3+ 52On rationaliging the denominator , we get , a 1= (3+ 5)(3− 5) 2(3− 5)= 9−5 6−2 5= 4 6−2 5= 2 3− 5Also, (a+ a 1) 2 =a 2 + a 2 1+2 Substituting the values of a  = a 1, We get , `( 2 3+ 5+ 2 3− 5) 2 =(a 2 + a 2 1+2) ∴a 2 + a 2 1+2=( 2 3+ 5+3− 5) 2 =(3) 2 =9 ∴a 2 + a 2 1=9−2=7.

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Dollymochi'S Girl 2 years, 3 months ago

a= 2 3+ 5 ∴ a 1 = 3+ 5 2 On rationaliging the denominator , we get , a 1 = (3+ 5 )(3− 5 ) 2(3− 5 ) = 9−5 6−2 5 = 4 6−2 5 = 2 3− 5 Also, (a+ a 1 ) 2 =a 2 + a 2 1 +2 Substituting the values of a  = a 1 , We get , `( 2 3+ 5 + 2 3− 5 ) 2 =(a 2 + a 2 1 +2) ∴a 2 + a 2 1 +2=( 2 3+ 5 +3− 5 ) 2 =(3) 2 =9 ∴a 2 + a 2 1 =9−2=7.

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ANSWER

Write a descriptive paragraph about 100-120 words on how technology changed our villages

Posted by Neha Balaji 2 years, 3 months ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

Difference between the right and Ms notepad

Posted by Mansha Thakur 2 years, 3 months ago

CBSE > Class 09 > Computer Applications (165)

0 answers

ANSWER

Sanskrit Mein Ling kitne Hote Hain

Posted by Laxita Kumawat 2 years, 3 months ago

CBSE > Class 06 > Sanskrit

5 answers

Atiksh Kumar 2 years, 3 months ago

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Tanmay.V Ashray.V. 2 years, 3 months ago

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Krishna Vashishth 2 years, 3 months ago

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Jashan Deep Kaur Khaira 2 years, 3 months ago

3 पुंलिङ्ग स्त्रीलिङ्गम् नपुंसकलिङ्गम्

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Tansu Sahu 2 years, 3 months ago

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soch kar bataen ki Kavi ne Chand ko hi apna vishay kyon chuna hoga

Posted by Arnav Jain 2 years, 3 months ago

CBSE > Class 06 > हिंदी (OLD)

1 answers

Sonit Singh 2 years, 3 months ago

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Why is lake manasarovar tibets most venerated stretch of water?

Posted by Rishabh Yadav 2 years, 3 months ago

CBSE > Class 11 > English Core

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Story writing: Read the given lines and complete the story in 100 to 200 words. Give a suitable title to your story. ' I awoke one morning and I found myself famous..... ' ( complete the story)

Posted by Queenie Nila 2 years, 3 months ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

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Nelson Mandela was sentenced to life imprisonment for what?

Posted by Abhijit Kumar 2 years, 3 months ago

CBSE > Class 09 > Social Science

1 answers

Harsh Gaur 2 years, 3 months ago

He is not send for life imprisonment he is in jail for 26 years

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Who led the term' April theses'.what are its demands?

Posted by Abhijit Kumar 2 years, 3 months ago

CBSE > Class 09 > Social Science

2 answers

Nandini Goyal 2 years, 3 months ago

VLADIMIR LENIN led the term April theses. The demands where ⚫THE WAR SHOULD CAME TO END 🔴BANKS SHOULD BE NATIONALIZED 🔵LENIN RETURN FROM EXILE ⚫HE WANT THE LAND SHOULD BE RETURNED THO PEASANTS.

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Nidhi 🕶️ 2 years, 3 months ago

Vlamidir lenin led the term April theses ,the demand are the war should came to end

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ANSWER

What is balance dite

Posted by Abdul Basit 2 years, 3 months ago

CBSE > Class 06 > Science (OLD)

5 answers

Lovely Pradhan 48: 2 years, 2 months ago

It is diet not dite ok

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Nakshatra Lodha 2 years, 3 months ago

Which school and which class and section

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Manvi Chafle 2 years, 3 months ago

Balanced diet is a diet in which all the nutrients present in adequat amount

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Shashini Shashini 2 years, 3 months ago

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Vaishali Borkar 2 years, 3 months ago

Hi sir or mam I am shreya are teacher told us to write notes of12 lesson

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What is mole formula

Posted by Shafiur Rahman 2 years, 3 months ago

CBSE > Class 11 > Chemistry

4 answers

Pooja Saini 2 years, 2 months ago

Mass/ Molar mass is the formula of mole.

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Deepanshu Tiwari 2 years, 3 months ago

Brother there are three formulas to find moles(n) The first one is :- n = given weight / mol. Weight The second one is :- n = no of particles/Na And the third one is :- n = volume of gas/22.4 l

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Akash Kumar 2 years, 3 months ago

What's is the power of electri current

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M R 2 years, 3 months ago

Nogic

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Case study on how chemistry is used in space

Posted by Sudeep Reddy 2 years, 3 months ago

CBSE > Class 10 > Science

0 answers

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Case study on how chemistry Is used in space

Posted by Sudeep Reddy 2 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Rohan, a student of class XI has taken up physical education as he is very interested in making his career in the field of Physical Education. When he was introduced to the career options available in the subject he became a bit hesitant about continuing in this field because for him physical education was just about playing so he approached his subject teacher to explain his position. On the basis of the given information given below are a few queries of Rohan and you have to give him the reply according to the information provided to you in your first chapter

Posted by Dab Chopra 2 years, 3 months ago

CBSE > Class 11 > Physical Education

1 answers

Rahul Kumar 2 years, 3 months ago

4Thank You

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What type of charge on assets is created by a company while issuing debentures?

Posted by Jay Parekh 2 years, 3 months ago

CBSE > Class 12 > Financial Market Management

3 answers

Sukhpreet Singh Sahota 1 year, 9 months ago

floating charge

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Chhotu Mishra 2 years, 1 month ago

Hii

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Jyotika Sen 2 years, 1 month ago

Floating charge

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Explain predation in detail

Posted by Divya Dave 2 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Prithvii K 2 years, 2 months ago

Interaction between two species in which one is called predator and other is prey. e.g, Cat(predator) eats mouse(prey). This happens to maintain the balance of the ecosystem and to survival of the species.

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Khushbu Yadav 2 years, 3 months ago

Gene therapy

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what are the views of weimar republic?

Posted by Account Deleted 2 years, 3 months ago

CBSE > Class 09 > Social Science

0 answers

ANSWER

Why does regeneration can occur in starfish but not in Amoeba??

Posted by Aashi Tiwari 2 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Alisha Kushwah 2 years, 3 months ago

special regenerative cells are present in starfish but not in amoeba , thus regeneration does not occur in amoeba. hope it helps

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Not Fine Bro 🎭 2 years, 3 months ago

Because amoeba is singular cell organism, where starfish has special type of cells which can recreate the body but amoeba not

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ANSWER

Did Hari like working for anil? Give reason in support of your answer?

Posted by Anushka Singh 2 years, 3 months ago

CBSE > Class 10 > English Language and Literature

2 answers

Swati And Prachi Jamwal 2 years, 3 months ago

No , Hari don't liked working with Anil at first . His one and only goal was to get steal money and run away. However Anil's kindness changed Hari. He began to take interest in Writing words and wanted to live a proper life with Anil

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Ayushi Roul 2 years, 3 months ago

Nope he was in a motive to collect profit from anil ....

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How did the Nazis succeed in Germany? What ideas did they support?

Posted by Ayush Sahu 2 years, 3 months ago

CBSE > Class 09 > Social Science

0 answers

ANSWER

Find out what fraction of the whole object has been taken out

Posted by Ojas Gupta 2 years, 3 months ago

CBSE > Class 06 > Maths (OLD)

2 answers

Rana Yagya Dev Singh 2 years, 3 months ago

Ex 7.5 all solutions

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Siddhi Singh 2 years, 3 months ago

Jsin

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The rational number-12/17 lies to the _________ of zero on the number line.

Posted by Divyanshu Kumar 2 years, 3 months ago

CBSE > Class 07 > Mathematics

1 answers

Vidhi Sharma 2 years, 3 months ago

Left

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Gramer

Posted by Nitesh Chilhate 2 years, 3 months ago

CBSE > Class 09 > हिंदी ए

3 answers

The M581 Company 2 years, 2 months ago

व्याकरण : 1. (क) उपसर्ग-प्रत्यय, 1. (ख) समास, 2. अर्गके आधार पर वाक्य-भेद, 3. अलंकार (अनुप्रास, यमक, उपमा, रूपक)।

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Account Deleted 2 years, 3 months ago

Grammar

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Nitesh Chilhate 2 years, 3 months ago

Samas

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Write a descriptive paragraph on jawaharlal nehru

Posted by Nitesh Chilhate 2 years, 3 months ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

What was Valli's mother doing when Valli returned home? Did she get caught?

Posted by Amarjit Yadav 2 years, 3 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Vinod Vyavhare 2 years, 3 months ago

valli's mother was talking with one of her aunt and she didn't got caught

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Two years ago father was three times as old as his son and two years hence,twice his age will be equal to five times that of his son find their present ages

Posted by Pravin Kumar 2 years, 3 months ago

CBSE > Class 08 > Mathematics

2 answers

Sonam Kumari 2 years, 3 months ago

We now have a system of two equations with two variables. We can solve these equations simultaneously to find the values of x and y. Conclusion: Hence, the present age of the son is 14 years and the present age of the father is 38 years.

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Pawan Gwalwanshi 2 years, 3 months ago

Yes

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Describe the elderly woman who board the bus.How did Valli behave with her ?

Posted by Amarjit Yadav 2 years, 3 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Swati And Prachi Jamwal 2 years, 3 months ago

Valli don't liked the elderly woman in bus. The woman according to Valli was very repulsive. •She had very big holes in her ear lobes and very ugly earrings in them. •Also she was chewing beetle nut whose syrup was about to spill over her lips which was very gross for Valli

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Geography chapter 5 industries definition

Posted by Aryan Kumar 2 years, 3 months ago

CBSE > Class 08 > Social Science