Time-Invariant and Time-Variant Systems (Solved Problems) | Part 1

Signal and System: Solved Questions on Time-Invariant and Time-Variant Systems.
Topics Discussed:
1. Effect of time-scaling on the time variance property of a system.
2. Effect of the time-dependent coefficient on the time variance property of a system.
3. Effect of adding or subtracting any time-dependent term on the time variance property of a system
4. Solved examples on time-invariant and time-variant systems.
5. Homework problems on time-invariant and time-variant systems.
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#SignalAndSystemByNeso #Signal&System #TimeInvariantSystem #TimeVariantSystem

[@aritraray3087]

All the Signals given for H.W. are Time Variant.
Reasson:
1 - Time scaling;
2. - time dependant coefficient;
3 - The added term is time dependant

[@ankitkaswan4453]

right

[@Rajasree-yv5oj]

Correct

[@abbaswali361]

🎉 champ 🏆

[@LKO_waale]

Such a awesome lecture . I remember my Faculty was trying to make us understand this topic and he tried a lot but nothing I understood.. Now jst by seeing the problem I can say about it.. Thank u soo much.. 🤩

[@mahammedhashish9170]

Your explanation really helped me to get rid of confusion.Such a wonderful lecture...

[@sandeepprajapati8718]

1 TV System
2 TV System
3 TV System
Please correct me if , I am wrong.

[@sagelioneldsouza8230]

Sandeep Prajapati im sorry sir..........
....
But you're absolutely right! 😂😂😂 you won 5 crore lottery

[@Kosma_polvo]

Absolutely

[@shivamrajguru6822]

@@sagelioneldsouza8230 haha

[@pascals5408]

@@sagelioneldsouza8230 so funny hahahaha

[@sagelioneldsouza8230]

@@pascals5408 its been an year bro... And you dared to wake me up from my sleep... Now you shall pay the consequences!
.
You will pay him the lottery money😌😂

[@nitigyajoshi4658]

all the homework questions are time variant systems. Is that right?

[@O4568r-s3v]

Its been three years of doing it right.

[@subhanrinl5675]

(1,2,3)TV

[@O4568r-s3v]

Its been seven years of doing it right. Why not a revision .

[@murtazakhan7364]

1. TIME Variant
2.TIME Variant
3.TIME Variant

[@andro7306]

Thanks, Sir I understand how to solve the problems on time-invariant and time-variant

[@shayankhan6936]

The best thing is the problem solving. Thanks for these great lectures

[@explorewidKhan]

very beautifully explained. i understand it for the first time in my life. thank you

[@ikramwani5207]

U mus be very old then ;)

[@artikumari6174]

You are genious...
Thnkuu so much sir

[@khushalsharma7370]

Mj roberts book sahi hai kya

[@fahadashrafofficial]

you are a great teacher

[@harinathvatti4377]

Many professors are watched this video to teach thier students . really this Chanel 👌👌👌👌

[@walidtrex]

Hey hari, Let's re-check the grammar of your sentence. "Many professors..." -ask yourself when are they doing the watching? past? present? future? you used the auxiliary verb "are" with a past verb "watched", and are is used with present continuous, so if you want to use are, it would be, Many professors are watching this video... etc. However in your case it would be much simpler to use the present simple... Many professor "watch" this video to teach their students. Hope this helps in the future.

[@harinathvatti4377]

Thanks

[@PoluBalaji]

@@walidtrex 😊😊😅

[@G.V.S.Karthikeya]

sir you have earned my respect than our useless faculty💖💥

[@hilltracksbiker5574]

Sir,, You are so briliant

[@md.sojibkhan6472]

1. TV because of time scaling
2. TV because of time dependent coefficient
3. TV because logt is time dependent function

[@rifatbinsultan5184]

massive respect
- Bangladesh

[@kushaldev8953]

Thank you so much.... Its very useful

[@wizkhalidxo]

Thank you for your short and easy explanation.

[@nomantahir3045]

All the three systems in Home work problems are "Time Variant Systems"

[@meeras2165]

Thanks ur saving my life

[@myonlynick]

for 1) y(t) = x(logt) we have: a) y(t-to) = x(log(t-to)) and b) x(t-to) -> system -> y(t-to) = x(logt - to). Thus,system is T, V. IS that proof right?

[@samarthjain2162]

yup

[@arsalanwasim4177]

correct

[@hritikroushan6068]

Yes absolutely correct

[@arthia2801]

You are such aaa wonderful man...tq u man for all your lectures

[@ajmerajainam2506]

Neso academy u r excellent👍👍👍👌👌👌

[@mohanmurari6889]

At 5:02 ex no 3 I didn't understand how it would be TV

[@GM-xz4xc]

U r great sir !

[@charlesrivero9963]

Thank you! I was having a hard time understanding the difference between x(t-to) and y(t-to), and now I just feel dumb because you made it seem so obvious.

[@khairulfahim]

y(t)=x(logt) is time varying because input x(logt) is scaled by log.
y(t)=t^2*x(t) it is also time varying because coefficient is t^2 which is a function of time means varying with time.
3) the added term logt is a function of time also means it is also varying with time so It is also a TV system

[@happyhuman9625]

Log is not time scaled.Log is just an operation sir.

[@minhlonxao992]

Goated channel

[@shan_singh]

7:15 why it is time variant ??
why are we considering coefficients unlike the previous cases in finding causal and non causal ?????

[@balakrishnakumar1588]

Pure excellence.

[@rahulbaikadi8743]

Nice explanation. Thank you

[@ehabwa1167]

You are AMAZING 👏
THNX ALOT...

[@sushmanaik2228]

Home work
1.Time variant
2.Time variant
3.Time variant

[@saich3608]

Great lecture

[@nihadabbikar5788]

sir your lectures are very much helping me to understand the concepts in simple manner.....osum teaching sir.....and one more thing sir can u prove how y(t^3)=x(t) is a time variant.....proof sir i am confused trying that.....

[@naseralbadareen3527]

i think you will have (t-t.)^3 in y shift and (t^3-t.) in input shift , thats why

[@SuperENGLAND92]

I think you can write y(t)=x(t^1/3) instead of given equation and i have tried some t values on that equation. They're equal and both time variant.

[@sabhysociety]

sir please upload power system and control system lecture

[@078_surajyadav6]

Yes

[@robert_redd1528]

can someone explain example number five? he said they aren't the same, yet its a time variant system? something about the scaling of cosine but when he solves for x(t-to), cosine also shifts?

[@lifeislarge]

Too good

[@linley2036]

Thank you!!

[@nitinkamra8972]

tv
tv
tv....
thanku soo much sir❤️

[@mohammedjunaidazhar1844]

It would be really helpful if you provide answers for the homework problems.

[@StarAsh13H]

thank you sir! it really helps me a lot.

[@vipulkumar9065]

The answers are as follows :-
(1) Time variant system
(2) Time variant system
(3) Time variant system

[@travel.tales.official]

Can someone explain with steps why example 3 in time variant?? I think it is time Invariant. Please help.

[@monisharamatham3212]

Time scaling

[@ananya5688]

Thak you sir for this nice lecture

[@onuahmmed8654]

thank you sir

[@pakxfoodshorts1390]

Great 👍

[@Mansoor.BSCEF22]

ALL given signals are Time Varying
First one includes time scaling
Second one has coefficient which is time dependent
In third one added term is time dependent

[@reasoningbydk786]

TV
TV
TV

[@rationalthinker9612]

How does time-reversal work? Say the signal is y(t) = (2-t). Is this TIV or TV?

[@andrewpersaud4144]

my prof tried to fool us with some big complicated equation and asked if its TI or not...Didn't even phase me...just looked for the co-efficient with the t in it, looked for the input and knew right away it was time variant lol.

[@starkendeavours7072]

Lol, Same here bro

[@muhammadateequrrehman488]

@@starkendeavours7072 how do you recognize it this way ?

[@lifeislarge]

Sir is oppenheim enough for signals and systems(gate preparations)?

[@paypal290]

Do more problems on other books also

[@ربيعطربوش-ر1خ]

thank ❤

[@ankursantoria5401]

All are TV

[@TopEgel]

At example 5 / why you change t in cost it is a coefficient ?

[@cevdettosun1170]

Can anyone explain wyh third question time variant by help of formula?

[@shewolverine]

Ben de anlamadım ya sen anladıysan anlatabilir misin

[@kaushalgarg4014]

Sir,why y(t^3)=X(t) is TVs?

[@Dhruba99]

For quickly determining: System can perform anything but it shouldn't involve t (time variable) in it. More specifically (time scaling, additional term {other than x(t), y(t) and contants} are prohibited)

[@008ajeethkumarm5]

y(t) = cost is an time variant system sir?

[@jaypandey227]

Yes!!

[@MrBibhishan]

All TV

[@vinayvinni7804]

Could any one prove 3.y(t^3)=x(t). Is time variant

[@sagelioneldsouza8230]

Vinay Vinni i guess taking cube roots on both the sides... Which makes the rhs^(1/3)...... Just a random guess

[@sagelioneldsouza8230]

I guess you wont even require the info now lol.. Its already 2 months.. Im sorry for the notificn

[@basantshaw6990]

All are Time variant system

[@akashguptatishti]

1,2,3 tv

[@posaakhilbabu2410]

Is integration x(t) dt TIV or TV
Explanation

[@rajatpandey496]

All are TV Systems

[@faizulislam1075]

All are TV sys.

[@andukassa3556]

super

[@electricalsujitgope]

1,2,3 all h.w are T.V system

[@Fantasticsman]

All the Signals given for H.W. are Time VarianT

[@giorgossille1]

Anybody help me with this : y(t) = 10dx(t)/dt . I'm not sure if I sould do : y(t-to) = 10dx(t-to)/ d(t-to) or not. Please help

[@dhaval9950]

All three are TIME VARIANT SYSTEM.

[@shraddhaagrawal7089]

All 3 time variant

[@bun_zees3245]

All time variant

[@sameerthor11]

all the three questions are time variant systems

[@matinmrv4213]

I didn’t understand why 3rd HOW is TV

[@swarajyalakshmi7186]

how the system is time variant if time scaling is at the output

[@karthikvenkata6484]

All are time-variant systems

[@swapnilpatil3352]

All are TV system

[@muskangpt19]

1. TV
2. TV
3. TV

[@attaurrahman3583]

All are TV systems

[@Lucky-wi6or]

Where are the solutions for the homework problems🤯?

[@غيداءباسم-خ2ن]

1/2/3 are TV

[@NCHINTAPUSHPA]

Please tell me xlogt simplification

[@bayzidhossain7422]

all the home work problem is Time Variant System

[@thehope7689]

1.TV
2.TV
3.TV
please correct ans I am wrong

[@thehope7689]

you are correct bro

[@fahadashrafofficial]

All the homework problems are time invariant

[@srivaishnavibhamidipati1058]

Time variant

[@slayshikha514]

Sir please ujt and scr ki video upload kr do

[@israquran373]

1.2&3 ARE TV

[@KirkHammer-fj2of]

I think x(t) -> delay t0 -> x(t-t0) -> sys -> x[Cos(t-t0)] and not x(Cost - t0) , plz verify.
i.e y is x(Cos of whatever inside bracket of x ) -> x [Cos ( ) ] plz verify.

[@KirkHammer-fj2of]

Thanks Neso,

[@OOmerKerem]

@@KirkHammer-fj2of past 2 years after this comment but i must ask this. I think you are right but you thanks to neso as reply. I cant see neso's reply. Can you explain which one is true. Your or Neso's ? :)

[@harithathirumalapudi6233]

All are time varient

[@devilogesh8874]

All are time variant

[@gopikrishnamoodu6152]

All 3 are TV system.

[@harendrakumarjatav6726]

All three questions are time variant...

[@keerthanajospin2874]

All 3 are TV

[@JesusMartinez-kq8ze]

and x^2(n)?

[@محمدكنعان-ق5ع]

why is y(t)=x(-t) TV

[@kaavyasameerasajja6730]

All systems are time variant

[@marinawanis1059]

For the homework given are all the systems time variant ? Please correct me if I'm wrong!

[@AmitCodes]

tv tv tv ty

[@sairaja6849]

1,2,3are TV

[@muzzle_4717]

all three are TV system