कौन सा विकल्प (\(\sqrt{13}+\sqrt{12}\)\(\sqrt{13}-\sqrt{12}\)) का मान है?
Which option is the value of (\(\sqrt{13}+\sqrt{12}\)\(\sqrt{13}-\sqrt{12}\))?
Explanation opens after your attempt
Correct Answer
A. (1)
Concept
By difference of squares the value is (13-12=1). Product of conjugate pairs often gives a rational number.
Why this answer is correct
The correct answer is A. (1). By difference of squares the value is (13-12=1). Product of conjugate pairs often gives a rational number.
Exam Tip
अंतर वर्ग सूत्र से मान (13-12=1) है। संयुग्मी जोड़े का गुणन अक्सर परिमेय देता है।
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