यदि परवलय (x)-अक्ष को ((2,0)) पर छूकर ऊपर लौट जाता है, तो शून्यकों की संख्या क्या होगी?
If a parabola touches the (x)-axis at ((2,0)) and turns upward, how many zeroes does it have?
Explanation opens after your attempt
Correct Answer
A. एकOne
Concept
The parabola meets the (x)-axis at only one point. Therefore it has one real zero, (2).
Why this answer is correct
The correct answer is A. एक / One. The parabola meets the (x)-axis at only one point. Therefore it has one real zero, (2).
Exam Tip
परवलय (x)-अक्ष से केवल एक बिंदु पर मिलता है। इसलिए उसका एक वास्तविक शून्यक (2) होगा।
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