यदि (m=3) और (n=-2), तो \(m^2n-2mn^2\) का मान क्या होगा?
If (m=3) and (n=-2), what is the value of \(m^2n-2mn^2\)?
Explanation opens after your attempt
A. (-42)
Concept
(m-2n=9(-2)=-18) and (2mn-2=2(3)(4)=24). So the total value is (-18-24=-42).
Why this answer is correct
The correct answer is A. (-42). (m-2n=9(-2)=-18) and (2mn-2=2(3)(4)=24). So the total value is (-18-24=-42).
Exam Tip
(m-2n=9(-2)=-18) और (2mn-2=2(3)(4)=24)। इसलिए कुल मान (-18-24=-42) है।
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