यदि (x=1) और (y=-3), तो \(2x^2-xy+y^2\) का मान क्या होगा?
If (x=1) and (y=-3), what is the value of \(2x^2-xy+y^2\)?
Explanation opens after your attempt
C. (14)
Concept
(2(1)2-(1)(-3)+(-3)2=2+3+9=14). Watch negative multiplication and squares carefully.
Why this answer is correct
The correct answer is C. (14). (2(1)2-(1)(-3)+(-3)2=2+3+9=14). Watch negative multiplication and squares carefully.
Exam Tip
(2(1)2-(1)(-3)+(-3)2=2+3+9=14)। ऋणात्मक गुणन और वर्ग पर ध्यान दें।
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