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 131-140 of 550 questions.
Is (x=1) a root of \(x^2-x=0\)?
A. हाँYes
(x=1) रखने पर \(1^2-1=0\) मिलता है। मूल की जांच में दिया हुआ मान सीधे रखें। / Putting (x=1) gives \(1^2-1=0\). To check a root, directly substitute the given value.
Login to save your score, XP, coins and progress.
What is the expression (p(x)=x-2+2x+1)?
C. द्विघात बहुपदQuadratic polynomial
(p(x)=x-2+2x+1) एक बहुपद है क्योंकि इसे (0) के बराबर नहीं रखा गया है। (=0) लगाने पर यह समीकरण बनेगा। / (p(x)=x-2+2x+1) is a polynomial because it is not set equal to (0). It becomes an equation when written as equal to (0).
Login to save your score, XP, coins and progress.
What is the degree of \(x^2+1=0\)?
B. (2)
इसमें (x) की सबसे बड़ी घात (2) है। स्थिर पद घात को नहीं बदलता। / The highest power of (x) is (2). The constant term does not change the degree.
Login to save your score, XP, coins and progress.
What is the coefficient of (x) in \(2x^2-x+8=0\)?
A. (-1)
(-x) का गुणांक (-1) होता है। चिन्ह सहित गुणांक लिखना जरूरी है। / The coefficient of (-x) is (-1). It is necessary to write the coefficient with its sign.
Login to save your score, XP, coins and progress.
What is the value of (c) in \(x^2+7x=0\)?
D. (0)
मानक रूप से मिलाने पर स्थिर पद अनुपस्थित है इसलिए (c=0) है। अनुपस्थित स्थिर पद को (0) मानें। / Comparing with standard form, the constant term is absent, so (c=0). Treat a missing constant term as (0).
Login to save your score, XP, coins and progress.
What is the standard form of (x(x-5)=0)?
B. \(x^2-5x=0\)
(x(x-5)) को फैलाने पर \(x^2-5x\) मिलता है। कोष्ठक हटाते समय चिन्ह सही रखें। / Expanding (x(x-5)) gives \(x^2-5x\). Keep signs correct while removing brackets.
Login to save your score, XP, coins and progress.
What is the standard form of \(x^2=6x\)?
B. \(x^2-6x=0\)
(6x) को बाईं ओर लाने पर \(x^2-6x=0\) मिलता है। स्थानांतरण करते समय चिन्ह बदलता है। / Bringing (6x) to the left gives \(x^2-6x=0\). The sign changes during transposition.
Login to save your score, XP, coins and progress.
Which equation has highest power (2) of the variable?
C. \(3x^2+1=0\)
\(3x^2+1=0\) में सबसे बड़ी घात (2) है। द्विघात पहचानने के लिए चर की घात देखें। / In \(3x^2+1=0\), the highest power is (2). To identify a quadratic equation, look at the power of the variable.
Login to save your score, XP, coins and progress.
Why is \(\frac{1}{x^2}+x+1=0\) not a quadratic equation?
A. क्योंकि इसमें (x) की ऋणात्मक घात हैBecause it has a negative power of (x)
\(\frac{1}{x^2}=x^{-2}\) है जो बहुपद रूप नहीं है। द्विघात समीकरण में चर की ऋणात्मक घात नहीं होती। / \(\frac{1}{x^2}=x^{-2}\), which is not polynomial form. A quadratic equation cannot have a negative power of the variable.
Login to save your score, XP, coins and progress.
Why is \(\sqrt{x}+x^2=0\) not considered a quadratic equation in the usual form?
D. क्योंकि इसमें \(\sqrt{x}\) पद हैBecause it has a \(\sqrt{x}\) term
\(\sqrt{x}\) चर की भिन्न घात दिखाता है इसलिए यह सामान्य द्विघात रूप में नहीं है। द्विघात में केवल \(x^2\), (x) और स्थिर पद होते हैं। / The term \(\sqrt{x}\) shows a fractional power of the variable, so it is not in usual quadratic form. A quadratic equation has only \(x^2\), (x), and constant terms.
Login to save your score, XP, coins and progress.
Use Google login or mobile OTP. Admin can block users and control login providers.