यदि (x=1) और (y=3), तो (3(x+y)2-4xy) का मान क्या होगा?
If (x=1) and (y=3), what is the value of (3(x+y)2-4xy)?
Explanation opens after your attempt
A. (36)
Concept
Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.
Why this answer is correct
The correct answer is A. (36). Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.
Exam Tip
मान रखने पर (3(4)2-4(1)(3)=48-12=36) मिलता है। कोष्ठक और वर्ग पहले निकालें।
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