यदि परवलय के शून्यक (c-7) और (c+3) हैं तो सममिति अक्ष कौन सा होगा?
If the zeroes of a parabola are (c-7) and (c+3), what will be its axis of symmetry?
Explanation opens after your attempt
Correct Answer
A. (x=c-2)
Concept
The axis of symmetry is at the average of the zeroes, (\frac{(c-7)+(c+3)}{2}=c-2). Tip: the average rule also works with symbols.
Why this answer is correct
The correct answer is A. (x=c-2). The axis of symmetry is at the average of the zeroes, (\frac{(c-7)+(c+3)}{2}=c-2). Tip: the average rule also works with symbols.
Exam Tip
सममिति अक्ष शून्यकों के औसत पर है (\frac{(c-7)+(c+3)}{2}=c-2)। टिप: प्रतीकों में भी औसत का नियम लागू होता है।
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