Theory of Equation | Descarte's Rule Of Sign | Finding Sign Of Roots

[@gajendrapurohit]

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Galat mat pdhaya kro yaar jahar ghol rhe ho

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[@mohanjindal9177]

In last three examples, for 2nd example, positive roots can be 3 or 1 , as theorem gives maximum number of positive roots not exact number

[@sonalisarve3664]

Very good& easiest explanation sir.👌👌👌thank you for giving this explanation.

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Hii

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[@nitikagaur1682]

One must take care of that 'no of +ve or -ve cannot exceed the number of sign change' that's the concept here.
That is if 'S' is set of all positive roots of f(x)=0 then n(S)≤ no. of sign change. Same for negative roots.
That's why we have to prove in that problem that the biquadratic eqn has 'atleat' 2 complex roots.

[@prashantchapranagurjar]

Sir apke teaching lajavab hai mene pehle video dekhi apki or ache se samajh aya 👍👍

[@babansahani9286]

You are my best teacher sir thanku so much

[@ritikadev2627]

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Sir aap bahut achha padhate ho

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Thanks from BD

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Thank you so much sir your every video is very helpful for me and finally you make this video

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sir aap mehnat karte rahiye
aap normal teachers se kahi guna acha padhate ho
your channel deserves atleast a million subscribers sir

[@NOMERCYGAMER1]

One million done ✅

[@Comic_relief_character]

Isme koi exception nhi kya ? Ye rule har que mei apply kr skte hai?

[@Krish_202]

Sir in equation like f(x) = x² + 4x + 5 . How do I know the roots are positive real or negative by Descartes theorem because there's no change in f(x) or f(-x)

[@adityakumarsingh2131]

Thanks sir your video is so helping 🙏

[@nayanrajsinghshaktawat1481]

Splendid lecture

[@bikramjitpathak4757]

Sir itni asani se samjhaya 😃, equation dekh ke kitna dar lagta hai... Lekin aap ke samjhane par easy ban geya😇

[@manjumeher]

Sir Descartes method of finding roots per v video bna dijiye 🙏

[@ranaislamrony578]

Thanks for solving this pblm.

[@priyanshu1812]

Thanks sir 🙏

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thanks to you sir...i am prearing jee adv and i struct at these kind of question but found this video...so helpfull❤️

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Most helpful class
Thanku sir

[@poojagupta7406]

Thankyou so much sir
👌👌😃😃

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Very Nice. Excellent.

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Nice explanation sir❤❤❤❤

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it's very helpful for me ❤❤❤❤❤

[@Wingsindigo883]

Sir meri ek query h...
X³-18x-35=0 ek equation hai...iske roots x=5 , x=(-5+i√3)/2 , x=(-5-i√3)/2 hain....one real root and two complex roots...
But jab hum Descarte's rule of sign apply kr rhe hein to yeh f(-x) ke liye two negative real roots bta raha h..jabki asliyt m iske pass 2 complex roots hein...plzz sir mere iss doubt ko clear kijiye

[@vineetbum7699]

Thnku soo much sir...for this helpfull video...

[@ayanbanerjee1379]

sir please upload a video on sturm's method

[@kavitaraghuwanshi2106]

Thanks for uploading such vedios, very helpful

[@vuyyurisatyasrinivasarao3140]

Good explanation sir

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Thank you sir ... for your helpful explained

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Hi

[@shubhamsaurabh4419]

Achha explain kiya sir aapne 👍👍

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Sir this video was very helpful to me. Thanks alot.

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❤thank you so much sir 😊😊

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[@ayanbanerjee1379]

sir please upload a lecture on sturms function

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[@Shiva_Bharti]

Very very helpful
Thanku so much sir 🙏

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Tq sir for making this video

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[@deepaksuwalka4681]

Thank you

[@indian1747]

Ur explanation nd teaching techniques are wonderful sir💯💯
But please improve ur 📷 quality
Anyways thnk sir👍👍

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Thank u so much!!💓

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Thank you sir..

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Thanks a lot

[@Amjadkhan-gi4tu]

Mashalla so clear it was in understanding the Descartes rule

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Thank you sir ji

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I really loved your teaching sir .❤️❤️

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[@KesarDhaka]

*video

[@heeraksharma1224]

In last example, there will be exactly 2 imaginary roots as imaginary roots always occur in conjugate pair.

[@deepakprajapati7228]

U r right

[@NotGodvalo]

@@deepakprajapati7228 ahh, adhi adhuri knowledge. pair matlab 2-2 ke grp. toh 4 imaginary roots matlab 2 pair. sahi toh hai. pair mei hi toh a rhe hai. zaruri nhi ki ek hi pair ho

[@Chandangiri8134]

Wrong concept. ...there have not explain about variation of signs in the sequence of coefficients. .....

[@anjalipatel4116]

Thank u sooo much for helping sir

[@dhananjaysahani4470]

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Thank you🙏 sir for your hard work

[@lalitakushwaha-l7q]

Sir can we use discardes rule in trigonometric functions????

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Yes
It was really helpful for me too

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Much knowledge in less time
Great effort is done to make this video

[@kiranjoshi212]

Very nice sir👍

[@IndianGamer-qz8lf]

The video was great, but many times the audio didn't match the content.
Sir kept on saying +, -, + but on the board it was written +,-,-
Sir also said roots are 5 and -4, but then wrote 5 and -1.
I know these are very minute mistakes, but they confused me very much.

[@Tuuuuusssjjjjjjnrnfnnfnfn]

Agree

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Amazing concept😐

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Sir aap bhut bhut bhut achha pdhate ho
Thank u sir
🙏🙏🙏🙏

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Sir please some more questions on Ferrari method.

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Thanks

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Time saving ❤️...earned one more subscriber

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Sir you are a great😇

[@dronamrajuchandarshi9758]

Thanks for the class sir

[@veronicakudnavar7105]

I have one doubt.
If number of postive real root is 2 then does the equation have exactly 2 positive real root or atmost 2 postive real root.
Please clear this doubt.

[@Whochetanmeena]

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thanks sir...useful in acf also..

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Helpful vdo sir 🙏

[@AjaySingh-xf3re]

Sir how to find the nature of roots of the equation x^2-2x+8=0 by by descartes rule of sign

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Great!

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Tysm sir🌺

[@mathematicsgpgcwryk5747]

Very good

[@aryanshrraghuwanshi]

I think no. of positive roots(or negative) will be no of tikes sign changes or less than it by multiples of even no.
Btw thanks sir, I wanted this for my Jee advanced paper.

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Nice sir ji 👍👍

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Thanks Sir 🧡

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waooo sir ekdam mast padhaya apne

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