\(2.5^2-1.5^2\) का मान क्या है?
What is the value of \(2.5^2-1.5^2\)?
Explanation opens after your attempt
C. (4)
Concept
Using (a-2-b-2=(a-b)(a+b)), ((2.5-1.5)(2.5+1.5)=1\cdot4=4). Identities also work with decimals.
Why this answer is correct
The correct answer is C. (4). Using (a-2-b-2=(a-b)(a+b)), ((2.5-1.5)(2.5+1.5)=1\cdot4=4). Identities also work with decimals.
Exam Tip
(a-2-b-2=(a-b)(a+b)) से ((2.5-1.5)(2.5+1.5)=1\cdot4=4)। पहचान दशमलव में भी लागू होती है।
Login to save your score, XP, coins and progress.
