\(x^2-1\) का गुणनखंड रूप चुनिए।
Choose the factorised form of \(x^2-1\).
Explanation opens after your attempt
C. ((x-1)(x+1))
Concept
Since \(1=1^2\), \(x^2-1\) is a difference of squares. Exam tip: apply small identities carefully.
Why this answer is correct
The correct answer is C. ((x-1)(x+1)). Since \(1=1^2\), \(x^2-1\) is a difference of squares. Exam tip: apply small identities carefully.
Exam Tip
\(1=1^2\), इसलिए \(x^2-1\) दो वर्गों का अंतर है। परीक्षा में छोटी पहचान भी ध्यान से लगाएं।
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