कौन-सा फलन (y)-अक्ष के प्रति सममित है और उसका न्यूनतम मान (2) है?
Which function is symmetric about the (y)-axis and has minimum value (2)?
Explanation opens after your attempt
A. \(y=x^2+2\)
Concept
\(x^2+2\) is even and its minimum is (2). In exams, check (f(-x)=f(x)) for symmetry.
Why this answer is correct
The correct answer is A. \(y=x^2+2\). \(x^2+2\) is even and its minimum is (2). In exams, check (f(-x)=f(x)) for symmetry.
Exam Tip
\(x^2+2\) सम फलन है और इसका न्यूनतम (2) है। परीक्षा में सममिति के लिए (f(-x)=f(x)) जांचें।
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