( \(3+\sqrt{10}\)\(3-\sqrt{10}\) ) का मान क्या है?
What is the value of ( \(3+\sqrt{10}\)\(3-\sqrt{10}\) )?
Explanation opens after your attempt
B. ( -1 )
Concept
Conjugate multiplication gives (32-\(\sqrt{10}\)2=9-10=-1). The middle terms cancel.
Why this answer is correct
The correct answer is B. ( -1 ). Conjugate multiplication gives (32-\(\sqrt{10}\)2=9-10=-1). The middle terms cancel.
Exam Tip
संयुग्मी गुणन से (32-\(\sqrt{10}\)2=9-10=-1) मिलता है। मध्य पद कट जाते हैं।
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