Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 71-80 of 600 questions.
How many terms with zero coefficient are explicitly written in \(4x^2+0x+9\)?
B. (1)
(0x) एक ऐसा पद है जिसका गुणांक (0) है। शून्य गुणांक वाला पद लिखने पर भी मान नहीं बदलता। / (0x) is one term whose coefficient is (0). A zero-coefficient term does not change the value.
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If (p(a)=0), what is (a) called for (p(x))?
C. शून्यZero
यदि (p(a)=0), तो (a) बहुपद का शून्य कहलाता है। शून्य जाँचने के लिए उस संख्या को (x) में रखें। / If (p(a)=0), then (a) is called a zero of the polynomial. To test a zero, substitute that number for (x).
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Which of the following is not a polynomial in (x)?
C. \(\frac{5}{x^2}+1\)
\(\frac{5}{x^2}=5x^{-2}\) में ऋणात्मक घात है। बहुपद में ऐसी घात मान्य नहीं होती। / \(\frac{5}{x^2}=5x^{-2}\) has a negative power. Such powers are not allowed in a polynomial.
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What is the zero of (p(x)=x-6)?
A. (6)
(x-6=0) करने पर (x=6) आता है। (x-a) का शून्य (a) होता है। / Setting (x-6=0) gives (x=6). The zero of (x-a) is (a).
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What is the coefficient of \(x^2\) in \(2x^3-7\)?
B. (0)
\(x^2\) का कोई पद नहीं है इसलिए गुणांक (0) है। अनुपस्थित घात को शून्य गुणांक वाला पद माना जा सकता है। / There is no \(x^2\) term, so the coefficient is (0). A missing power can be treated as a term with zero coefficient.
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Which polynomial has degree (1)?
B. (9x-3)
(9x-3) में (x) की सबसे बड़ी घात (1) है। इसलिए यह घात (1) का बहुपद है। / In (9x-3), the highest power of (x) is (1). So it is a polynomial of degree (1).
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Which polynomial has degree (2)?
A. \(x^2+4x\)
\(x^2+4x\) में सबसे बड़ी घात (2) है। इसलिए इसकी घात (2) है। / The highest power in \(x^2+4x\) is (2). Therefore its degree is (2).
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What is the coefficient of (x) in \(10x^3-6x^2+2x-1\)?
C. (2)
(x) वाले पद (2x) का गुणांक (2) है। केवल उसी पद को देखें जिसमें \(x^1\) हो। / The coefficient of the (x)-term (2x) is (2). Look only at the term containing \(x^1\).
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Is \(4x^2-3\sqrt{x}+1\) a polynomial in (x)?
B. नहींNo
\(\sqrt{x}=x^{\frac{1}{2}}\) है और \(\frac{1}{2}\) पूर्ण संख्या नहीं है। इसलिए यह (x) में बहुपद नहीं है। / \(\sqrt{x}=x^{\frac{1}{2}}\), and \(\frac{1}{2}\) is not a whole number. So it is not a polynomial in (x).
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For (p(x)=x-2+5), what is (p(-2))?
C. (9)
(p(-2)=(-2)2+5=9) है। ऋणात्मक मान का वर्ग धनात्मक होता है। / (p(-2)=(-2)2+5=9). The square of a negative value is positive.
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