यदि परवलय (x)-अक्ष को केवल छूता है, काटता नहीं है, तो द्विघात बहुपद के वास्तविक शून्यकों की संख्या क्या होगी?
If a parabola only touches the (x)-axis and does not cut it, how many real zeroes does the quadratic polynomial have?
Explanation opens after your attempt
Correct Answer
A. एकOne
Concept
When a parabola touches the (x)-axis at one point, it has one real zero. In exams, touching the (x)-axis also counts as meeting it.
Why this answer is correct
The correct answer is A. एक / One. When a parabola touches the (x)-axis at one point, it has one real zero. In exams, touching the (x)-axis also counts as meeting it.
Exam Tip
जब परवलय (x)-अक्ष को केवल एक बिंदु पर छूता है, तो एक वास्तविक शून्यक होता है। परीक्षा में छूना भी (x)-अक्ष से मिलना माना जाता है।
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