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Which option is an algebraic expression?कौन-सा विकल्प बीजीय व्यंजक है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(x+7\)\(x+7\)
\(x+7\) is an algebraic expression because it contains the variable \(x\), the constant 7, and an operation. \(x=7\) is an equation, while \(x+7>0\) is an inequality; they contain relation symbols and are not merely expressions. Exam tip: An expression generally does not contain relation symbols such as \(=, <, >\).\(x+7\) एक बीजीय व्यंजक है, क्योंकि इसमें चर \(x\), स्थिरांक 7 और जोड़ का चिह्न है। \(x=7\) एक समीकरण है, जबकि \(x+7>0\) एक असमिका है; इनमें संबंध-चिह्न होने के कारण ये केवल व्यंजक नहीं हैं। परीक्षा टिप: व्यंजक में सामान्यतः \(=, <, >\) जैसे संबंध-चिह्न नहीं होते।
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