यदि परवलय नीचे की ओर खुलता है और (x)-अक्ष को दो बिंदुओं पर काटता है तो वास्तविक शून्यकों की संख्या क्या होगी?
If a parabola opens downward and cuts the (x)-axis at two points, how many real zeroes will it have?
Explanation opens after your attempt
Correct Answer
A. दोTwo
Concept
The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.
Why this answer is correct
The correct answer is A. दो / Two. The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.
Exam Tip
खुलने की दिशा शून्यकों की संख्या अकेले तय नहीं करती। दो कटान स्पष्ट रूप से दो वास्तविक शून्यक देते हैं।
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