भुजा (x+y+z) वाले वर्ग के मॉडल में \(x^2\), \(y^2\), \(z^2\), (2xy), (2yz) दिखते हैं। कौन सा भाग छूटा है?
In the model of a square of side (x+y+z), the parts \(x^2\), \(y^2\), \(z^2\), (2xy), and (2yz) are shown. Which part is missing?
Explanation opens after your attempt
B. (2xz)
Concept
In a trinomial square, twice the product of every pair appears. Exam tip: count the pair (x) and (z) too.
Why this answer is correct
The correct answer is B. (2xz). In a trinomial square, twice the product of every pair appears. Exam tip: count the pair (x) and (z) too.
Exam Tip
तीन पदों के वर्ग में हर जोड़ी का दुगुना गुणनफल आता है। परीक्षा में (x) और (z) की जोड़ी भी गिनें।
Login to save your score, XP, coins and progress.
