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In an AP, Of Sn=n(4n+1) , find the Ap

Posted by Rutuja Londhe 2 years, 6 months ago

2 answers

S P Jaishwal 2 years, 6 months ago

Sn = n(4n+1) Sn = 4n^2 +n Sn-1 = 4(n-1)^2 +(n-1) Sn-1 = 4(n^2+1-2n) +(n-1) Sn-1 = 4n^2+4-8n +n -1 Sn-1 = 4n^2-7n -3 Sn - Sn-1 = 4n^2+ n -(4n^2-7n-3) = 4n^2+n -4n^2+7n +3 =8n +3 =TN =8n +3 T1 = 8×1+3= 11 =a T2 =8×2 +3 = 19 d = T1-T2 =19 - 11= 8 =d AP = 11, 19, 27 ,.......

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Roma Jebisow 2 years, 6 months ago

1.1

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explain the significance of portraying nations as female figures by the European artists of 18th and 19th century

Posted by Anuirudh Bhatt 2 years, 6 months ago

CBSE > Class 10 > Social Science

0 answers

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Stress

Posted by Darakshan Ahmed 2 years, 6 months ago

CBSE > Class 10 > Information Technology (402)

2 answers

Shivansh Gupta 2 years, 6 months ago

List your favourite stress management technique and laboratory why you find it the most effective

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Dishant Sonker 2 years, 6 months ago

Stress is a emotional and physical stain caused by our response to pressure from the out side world

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Justify the idea that fire and ice are capable to Destroy the world individually

Posted by Rishu Kumar 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Ragu Raghav 2 years, 6 months ago

Yes fire and ice can destroy us and world

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In my school interact with English literature reader is been taught by the teacher will the question come from that book in board's 2024

Posted by Ishita Sharma 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

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Explain the strange case of bretain

Posted by Rhushikesh Kalburgi 2 years, 6 months ago

CBSE > Class 10 > Social Science

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Write steps to apply different formatting to newly created cells

Posted by Nidhi Valecha 2 years, 6 months ago

CBSE > Class 10 > Information Technology (402)

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How did romanticism seek to develop a particular form of nationalist sentiments during eighteenth century

Posted by Manvi Khandelwal 2 years, 6 months ago

CBSE > Class 10 > Social Science

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Who was the chief architect of Italy

Posted by Manvi Saxena 2 years, 6 months ago

CBSE > Class 10 > Social Science

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If the ratio of sum of first m and m terms of an AP is m^2:n^2, show that the ratio of its mth and nth terms is (2m-1):(2n-1)

Posted by Pranav Wersun 2 years, 6 months ago

CBSE > Class 10 > Mathematics

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डायरी का एक पन्ना पाठ के माध्यम से लेखक ने विद्यार्थियों को क्या प्रेरणा देनी चाही? वर्तमान समय में इस तरह की प्रेरणा किस तरह से समाज के लिए उपयोगी हो सकती है? अपने विचार व्यक्त कीजिए।

Posted by Ayushi Lad 2 years, 6 months ago

CBSE > Class 10 > हिंदी ब

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6x²_2x+⅙

Posted by Raj Sen Pandey Rsp 2 years, 6 months ago

CBSE > Class 10 > Mathematics

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How did postmaster try help the writers of the latter

Posted by Sangeeta Kumari 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Ruhi Kaur 2 years, 6 months ago

The postmaster tried to help lencho in order to keep his faith in god

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Why different people have different goles

Posted by Sumbul Fatma Shah 2 years, 6 months ago

CBSE > Class 10 > Social Science

1 answers

Navjot Kaur 2 years, 6 months ago

Different people have different goles because everyone thinking is different and everyone wants their betterment

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Short note about flora and fauna

Posted by Fahad Pm 2 years, 6 months ago

CBSE > Class 10 > Social Science

1 answers

Atharv Raj 2 years, 6 months ago

Another meaning for flower and animala

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BBC compacta 10 class module 1 PA-3

Posted by Amar Singh 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

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What was the role of peasants in Civil disobedience movement?

Posted by Srishti Chauhan 2 years, 6 months ago

CBSE > Class 10 > Social Science

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Difference between Bar magnet and Electromagnet.

Posted by Jahanvi Chauhan 2 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Pavitra Mandal 2 years, 6 months ago

Bar magnet is permanent magnet and electromagnet is temporary magnet

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प्रश्न 1. तिम्नतिखखि गद्ाींर् पि आर्ारिि बहुतवकल्प /वस्तुपिक प्रश्नोीं के उत्ति सवाशतर्क उपयुक्त तवकल्प चुिकि तिखखए। हमारे देों में वहंदी विल्ों के गीे अपिे आरंभ से ही आम दों णक के सुख-दुख के साथी रहे हैं। वेणमाि समर् में वहंदी विल्ों के गीेों िे आम नि के हृदर् में िोकगीेों सी आत्मीर् नगह बिा िी है। वनस ेरह से एक नमािे में िोकगीे निमािस के सुख-दुख आकांक्षा उल्लास और उम्मीद को स्वर देेे थे आन विल्ी गीे उसी भूवमका को विभा रहे हैं। इेिा ही िहीं देों की ववववधेा को एकेा के सूत्र में बााँधिे में वहंदी विल्ों का र्ोगदाि सभी स्वीकार करेे हैं। वहंदी भाषा की ों ब्द संपदा को समृद्ध करिे का नो काम रानभाषा ववभाग ेत्सम ों ब्दों की सहार्ेा से कर रहा है वही कार्ण विल्ी गीे और डार्िॉग विखिे वािे ववववध क्षेत्रीर् भाषाओं के मेि से करेे हुए वदखाई पड़ रहे हैं। र्ह गािे नि-नि के गीे इसी कारर् बि सके क्ोंवक इिमें रानिीवे के उेार-चढाव की अिुगूंनों के साथ देहाेी कस्बार्ी और िए बिे ों हरों का देों न नीवि दों णि भी आत्मसाे वकर्ा नाेा रहा है। भारे की वनस गंगा-नमुिी संस्कृ वे का मवहमामंडि बहुधा होेा है उसकी गूंन भी इि गीेों में वमिेी है। आनादी की िड़ाई के दौराि विखे प्रदीप के गीे हों र्ा स्वाधीिेा प्राखि साथ ही होिेवािे देों के ववभानि की ववभीवषका सभी को भी इि गीेों में बहुे संवेदिों ीि रूप से व्यक्त वकर्ा गर्ा है। वहंदी विल्ी गीेों के इस संसार में वहंदी-उदूण का 'झगड़ा' भी कभी पिप िहीं सका। प्रदीप िीरन नैसे ों ािदार वहंदी कववर्ों इंदीवर ेथा ों ैिेंद्र नैसे श्रेष्ठ गीेकारों और सावहर कै फी मनरूह नैसे मों हूर ों ार्रोंको वहंदी वसिेमा में हमेों ा एक ही वबरादरी का मािा नाेा रहा है। र्ह वसिेमा की इस दुविर्ा की ही खावसर्े है वक एक ेरफ गीेकार सावहर िे 'कहााँ हैं कहााँ हैं/मुहावफन खुदी के / वनन्हें िान है वहंद पर/ वो कहााँ हैं' विखा ेो दू सरी ेरफ उन्होंिे ही 'संसार से भागे वफरेे हो/ भगवाि को ेुम क्ा पाओगे !/ र्े भोग भी एक ेपस्या है / ेुम प्यार के मारे क्ा नािोगे / अपमाि रचवर्ेा का होगा/ रचिा को अगर ठु करा ओगे!' नैसी पंखक्तर्ााँ भी रची हैं। परववेणर्ों में गुिनार ऐसे गीेकार हैं वनन्होंिे उदूण वहंदी पंनाबी रानस्थािी के साथ पुरवबर्ा बोविर्ों में मि को मोह िेिे वािे

Posted by Palak Jain 2 years, 6 months ago

CBSE > Class 10 > हिंदी ए

2 answers

Rukamani Rukamani 2 years, 5 months ago

छतभयल

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Rukamani Rukamani 2 years, 5 months ago

प्रश्न ठीक से नहीं लिखा है समझ नहीं आ रहा है

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A concave mirror is used for image formation for different positions of an object.What inferences can be drawn about the following when an object is placed at a distance of 10 cm from the pole of a concave mirror of focal length 15 cm? (a) Position of the image (b)Size of the image (c)Nature of the image

Posted by Sandhya Chaudhary 2 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Ishan Jaiswal 2 years, 6 months ago

Tu ullu

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What do you understand by disguised unemployment? Explain with example the urban and rural areas

Posted by Neha Maurya 2 years, 6 months ago

CBSE > Class 10 > Social Science

0 answers

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if x cos a = 8 and 15 coseca = 8 sec(a) then the value of x is

Posted by Satyam Yadav 2 years, 6 months ago

CBSE > Class 10 > Mathematics

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If 1 is the zero of the polynomial p(x) = x ^ 3 + a * x ^ 2 + 2b and a + b = 4 then (2) * a = 9, b = - 5 (4) a = 3, b = 1 (1) a = 5, b = - 1 (3) a = 7, b = - 3

Posted by Shreyansh Agarwal 2 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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Summary two stories about flying

Posted by Farz Faiz 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

0 answers

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Summary first flight

Posted by Farz Faiz 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature

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Two positive integer a and b can be written as a=x2 y2 and b=xy2 where n and y are prime numbers find LCM (a,b)

Posted by Manavala Akhila 2 years, 6 months ago

CBSE > Class 10 > Mathematics

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Chapter 1chemical reaction and equation topic oxidation and raaction

Posted by Tinku Barpete 2 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Gaurav Kumar 2 years, 6 months ago

When an atom or a group of atom gain oxygen and lose hydrogen is called oxidation. When an atom or a group of atom gain hydrogen and lose oxygen is called reduction.

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Himanshu Kumar 2 years, 6 months ago

Oxidation- when oxygen is added in a substance and hydrogen is removed from a substance is called oxidation reaction Reduction- when hydrogen is added in a substance and oxygen is removed from a substance is called reduction reaction

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Tinku Barpete 2 years, 6 months ago

Please answer me

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English Hindi mathematics all subjects problem

Posted by Mansingh Yadav 2 years, 6 months ago

CBSE > Class 10 > English Language and Literature