यदि (x=3) और (y=-1), तो \(2x^2-xy+4y\) का मान क्या होगा?
If (x=3) and (y=-1), what is the value of \(2x^2-xy+4y\)?
Explanation opens after your attempt
A. (17)
Concept
Substitution gives (2(9)-3(-1)+4(-1)=17). In two-variable questions, check signs separately.
Why this answer is correct
The correct answer is A. (17). Substitution gives (2(9)-3(-1)+4(-1)=17). In two-variable questions, check signs separately.
Exam Tip
मान रखने पर (2(9)-3(-1)+4(-1)=17) मिलता है। दो चर वाले प्रश्न में चिह्न अलग से जांचें।
Login to save your score, XP, coins and progress.
