Ex 2.1 Q1-Q7 Polynomials Class 10 Maths NCERT Exemplar@MathsTeacher​

POLYNOMIALS | CHAPTER: 2 | EXERCISE 2.1 | Class 10 Maths NCERT Maths | CBSE

Choose the correct answer from the given four options in the following questions:

Q1. If one of the zeroes of the quadratic polynomial (k–1) x2 + k x + 1 is –3, then the value of k is
(A) 4/3 (B) (-4)/3 (C) 2/3 (D) (-2)/3

Q2. A quadratic polynomial, whose zeroes are –3 and 4, is
(A) x^2 – x + 12 (B) x62 + x + 12
(C) x^2/2-x/2-6 (D) 2x^2 + 2x –24

Q3. If the zeroes of the quadratic polynomial x2 + (a + 1) x + b are 2 and –3, then
(A) a = –7, b = –1 (B) a = 5, b = –1 (C) a = 2, b = – 6 (D) a = 0, b = – 6

Q4. The number of polynomials having zeroes as –2 and 5 is
(A) 1 (B) 2 (C) 3 (D) more than 3

Q5. Given that one of the zeroes of the cubic polynomial ax63 + bx^2 + cx + d is zero, the product of the other two zeroes is
(A) -c/a (B) c/a (C) 0 (D) - b/a

Q6. If one of the zeroes of the cubic polynomial x3 + ax^2 + bx + c is –1, then the product of the other two zeroes is
(A) b – a + 1 (B) b – a – 1 (C) a – b + 1 (D) a – b –1

Q7. The zeroes of the quadratic polynomial x^2 + 99x + 127 are
(A) both positive (B) both negative (C) one positive and one negative (D) both equal

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[ritimishraa]

Ma'am your teaching style is very nice but I have a doubt in question 3 plzz. Explain it my humble request

[SajidKhan-mtqq]

Ma'am optional exercise k questions aate h exam m ya nhi????
Plz reply me Ma'am...😊

[Createreditzz_official]

Thank uh mam...bt ek doubt h mam...ki pta kaisey krenge ki questions mai alpha or beta h ..ya alpha beta k sum or alpha beta k multiplication ?

[P_A_I_N]

I madara declared u r the best teacher of maths...

[madhavisingh]

Mam jisne standard math liya uske exams mea iss ch se isss tarah ke questions aate h kya

[KunalKeshri]

Thank you so much mam. Your videos are awesome and I watched most of them. Thanks mam from core of my heart - Kunal Keshri

[Mrperfectjivan]

Mam as I personal opinion teachers if teach us along expressing examples with topic and demonstrating with the easy language will help the lot to the students and accordingly to the capacity of students they will utilise themselves for study

ATLAST I WANT TO SAY YOUR TEACHINGS ARE GREAT THANK YOU MAM FOR THIS WORK ITS HEPLS A LOT

[shalenderbanga]

Mam, quadratic formula ka Q ( Q7 ) of this video 2022 board Valo ka syllabus mai hai

[ujjwalpandey]

Mam standard maths ke question isi se aate hai

[richayadav]

Ma'am you are awesome teacher ☺️ Ma'am please tell me whether in this chapter Cubic polynomial is important or not and ma'am I am not able to login on your Google classroom platform

[sauravbisht]

thnks mam aap hamra lia itna mehntt kr rahi ho🙏

[satakshibts]

Mam ye konsi exemplar hai ?
Educart or arihant or something else

[ankitatripathy]

Mam pls also upload the examples of exemplar book... By the way, thank you❤🌹 soo much Mam...

[n.kishor]

Thank you mam please uplod all questions of chapter 2 fast fast

[.ohatke]

Mam plz explain why zero is an integer

[heyarti]

Bhut dino sa wait kar rhi thi ma, am polynomial exampler ka video thanks

[gangasharanrathod]

Thanks, thank you so much🙏🙇🙏🙇🙏🙇🙏🙇🙏🙇🙏🙇🙏🙇

[Secret..boy..]

Maam second question me formula khah se aya h

[deepkumari]

Thank u mam. Really u are great mam.☺☺☺☺☺

[mr.susant]

Awesome....
fabulous
And mathematics.... - beauty of nature