Class 11 Maths 2019 Q13, Sum to n Terms of Special Series

Chapter 9 Sequence and Series • 11th Class Sequences a...
Chapter 8 Binomial Theorem • 11 Class Binomial Theorem
Chapter 7 Permutation and Combination • 11 class Permutations ...
Chapter 6 Linear equalities • 11 class linear Inequa...
Chapter 5 Complex number • 11th class Complex Number
Chapter 4 PMI • 11th Class PMI
Chapter 2 Relations and Functions • 11th class Relation an...
Chapter 3 Trigonometry • 11th Class Trigonometry
Chapter 1 Sets • 11th Class Sets
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Q.Find the sum to n terms of the series whose nth term is n (n+3).
Q.Find the sum to n terms of the series:5+11+19+29+41........
R B Gautam
R B Classes
Mathura UP
9411990768

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[@Sg0224]

For limit n tending to infinity ,how should we approach above three formulas? KINDLY HELP SIR

[@shaiknayeem3004]

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[@eforelectron]

Excellent explaination 😍

[@nirajsinghrohela618]

Radhe Radhe guru Ji
Nice and subtle explanation

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[@mysticdragonex815]

Really good explanation sir, thank you

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Rellyeaxican.sar: 1/3! + I/5!+I/7!+I/10!

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app bahot accha padhate hai sir

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Bahut easy way se karya sir apne

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I will pray for ur long age

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[@sumitthakur5110]

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[@devansh.pachori]

Thanks Sir ❤️

[@apoorvaupadhyay9328]

Nice sir understood everything well

[@mahavirsinghshekhawat9]

Why we took ( k+1)^3 in equation 3 ?how we know it?

[@anitabehera1228]

My question is also same

[@shivanshuyadav7783]

Yes sir I also

[@AkhtarAli-hz8iq]

N3 ka matlab hai

[@aayushkumar5513]

Guyz you can also call it a trick
There are various other ways too to prove this result
The reason for taking (k+1)³ was that, it contained the required variables & consants to obtain the desired outcome

[@aayushkumar5513]

If you want to know how to realise that we should use (k+1)³ only, then expand the RHS & you'll know it all by yourself 😃

[@bijendersingh4110]

Really nice ...everything crystal clear.

[@swarnsingh3014]

Thanks very much sir.

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Clearity of concepts that's all matter and u did it so well sir 😅

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Thanku sir best explanation ❤❤❤❤

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Thanku sir love from🇵🇰🦋❤️

[@nagasiva98]

Tq so much sir. Ur xplaination is very useful to me sit

[@gyanendrajoshi6608]

Why we take (k+1)^3 explain briefly

[@travellingsblog682]

Sir aap bahut aacha samjahto ho

[@backbencherarena6362]

Why we take (k+1)^3 or (k-1)^3 for prove summation of square natural??? Why we take (k+1)^4 or 4ab for prove summation of qube natura number?

[@farzadkhan3813]

Thank you sir it helped a lot.

[@ganeshmanas4987]

Good explanation sir and thanku

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Bahut bahut dhannawad sir 🙏

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Preparation on exam day 😅 wonderful explanation.

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God will bless you for ever ever....

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Boht confound tha mai is topic me thanx

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[@mohitmishra6245]

Amazing sir you are great

[@souravshaw9390]

Nice Explanation❤

[@rovinsingh5788]

Thanks sir

[@equation0356]

Thank you sir sooo much 🎉❤

[@BIBEK1729]

Sir why we need the (k+1)³ -k³ equation to prove this.. 🙏🙏

[@user-wm6pr7ly8n]

Yes sir

[@nile_jain]

Thank you so much sir
Very helpful video

[@shubhammishra9427]

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Sir i understand all steps clearly because of you...🙏🙏...sir but one clue is that how we think this first step is used here

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Sir ap phir sa 11class ki math start karda please sir

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thankyou sir!

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acha laga sir ji

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Ankil op♥️

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Ankil samjhake maane ga.. 😤😤

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[@arpitkumar5821]

Kitab me same hi.... Kuch samghaye v (k+1) how we know?

[@kamaturkishor8181]

1×2+2×3+3×4+...+n(n+1) formula

[@rajendrayadavrajendrayadav9681]

Thanku sir

[@esquire_mayankedit]

Sir hamne 2 proved me( k+1)³ kyu lia hai

[@aditijain1929]

Best proving questions

[@kshamakhare5693]

Nice explanation sir 🙏

[@kasissah8144]

What is the formula of
2+2^2+2^3+...........+n=??

[@sabirseikh8569]

2(2^n-1)

[@G_lry]

Sir why we need to put the (k+1)³

[@shreedharkisku2818]

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[@sureshaachar2017]

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Thanks sirr

[@anilkumarsharma8901]

Sabka intersection area kitna parts mein hote hai??

[@KamleshKumar-wq2lm]

Excellent

[@rishikeshskanchi2602]

How did they arrive at (k+1)³+k

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[@santoshdagur5330]

Is it necessary to take (k+1)^3 to prove it?

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bro pahle mathamatical induction padho tabb ja ke samjh aaye gaa ki kyun sir ne aisa kiya

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Bhai aur app apni mathematical ki spelling shi kro
Jaruri thodi hi h sabko sab kuch aaye

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Nice. Video

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Sir your explanation is nice but you should take care of mistakes during calculating equation.😊

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Nice ho gaya

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Thanks for education

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3k2-3k+1 hoga 6:17

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u r great

[@AkashSingh-qs3ek]

Sir 1*4+2*4+3*4..............+n*4 ka kya formula hoga

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Excellent Sir

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I want ask a question is 1,4,6,8,9,10

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Super class

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thank you sir