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RBSE Solutions for Class 9 Maths Chapter 3 बहुपद Ex 3.1

February 20, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 9 Maths Chapter 3 बहुपद Ex 3.1 is part of RBSE Solutions for Class 9 Maths. Here we have given Rajasthan Board RBSE Class 9 Maths Chapter 3 बहुपद Exercise 3.1.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 9
Subject Maths
Chapter Chapter 3
Chapter Name बहुपद
Exercise Exercise 3.1
Number of Questions Solved 7
Category RBSE Solutions

Rajasthan Board RBSE Class 9 Maths Chapter 3 बहुपद Ex 3.1

प्रश्न 1.
निम्न व्यंजकों में से कौन-से बहुपद हैं? बहुपदों के चरों की संख्या ज्ञात कीजिए-
(i) 3x2 – 5x + 13
(ii) y2 + 2√3
(iii) y + \(\frac { 3 }{ y }\)
(iv) 3
(v) 2√x + √3 x
(vi) x12 + y3 + t20
हल:
(i) व्यंजक 3x2 – 5x + 13 में x की सभी घात पूर्ण संख्या हैं। इसलिए यह एक चर को बहुपद है।
(ii) y2 + 2√3 = y2 +2√3 y0 व्यंजक में y की सभी घात(RBSESolutions.com)पूर्ण संख्या हैं। अतः यह व्यंजक एक चर का बहुपद है।
(iii) y + \(\frac { 3 }{ y }\) = y + 2y-1, यह व्यंजक बहुपद नहीं है।
(iv) 3 यह एक अचर बहुपद है।
(v) 2√x + √3 x = 2x1/2 + √3 x ; यहाँ व्यंजक में पहले पद की घात \(\frac { 1 }{ 2 }\) है, जोकि पूर्ण संख्या नहीं है। इसलिए व्यंजक बहुपद नहीं है।
(vi) x12 + y3 + t20 ; यहाँ व्यंजक में x, y, t तीन चर हैं, अतः यह व्यंजक एक चर का नहीं हैं, बल्कि यह व्यंजक तीन चर का बहुपद है।

RBSE Solutions

प्रश्न 2.
निम्न व्यंजकों में प्रत्येक में x2 का गुणांक लिखिए-
(i) 12 + 3x + 5x2
(ii) 7 – 11x + x3
(iii) √3 x – 7
(iv) \(\frac { \pi }{ 2 }\) x2 + x
हल:
(i) 5
(ii) 0
(iii) 0
(iv) \(\frac { \pi }{ 2 }\)

प्रश्न 3.
45 घात के एक द्विपद का उदाहरण लिखो।
हल:
x45 + 2x (अन्य बहुपद भी संभव है।)

RBSE Solutions

प्रश्न 4.
120 घात के एकपदी का उदाहरण लिखो।
हल:
3x120 (अन्य बहुपद भी संभव है।)

प्रश्न 5.
8 घात के एक त्रिपदी का उदाहरण लिखो।
हल:
x8 + 5x4 + 2 (अन्य बहुपद भी संभव है।)

प्रश्न 6.
प्रश्न संख्या 3, 4 व 5 में दिए गए उदाहरणों के अतिरिक्त(RBSESolutions.com)पद भी क्या आप लिख सकते हैं? यदि हाँ तो प्रत्येक के दो उदाहरण लिखिए।
हल:
हाँ। प्रश्न 3, 4 व 5 के हल के आधार पर छात्र स्वयं करें।

RBSE Solutions

प्रश्न 7.
निम्न बहुपदों में प्रत्येक बहुपद की घात लिखिए
(i) 12 – 3x + 2x3
(ii) 5y – √2
(ii) 9
(iv) 3 + 4t2
हल:
(i) 3
(ii) 1
(iii) 0
(iv) 2

RBSE Solutions

We hope the given RBSE Solutions for Class 9 Maths Chapter 3 बहुपद Ex 3.1 will help you. If you have any query regarding Rajasthan Board RBSE Class 9 Maths Chapter 3 बहुपद Exercise 3.1, drop a comment below and we will get back to you at the earliest.

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