( (x+2y-3z)2 ) में (xz) वाला पद क्या है?
What is the (xz)-term in ( (x+2y-3z)2 )?
Explanation opens after your attempt
B. (-6xz)
Concept
From (x) and (-3z), (2\cdot x\cdot(-3z)=-6xz). Exam tip: apply the sign carefully.
Why this answer is correct
The correct answer is B. (-6xz). From (x) and (-3z), (2\cdot x\cdot(-3z)=-6xz). Exam tip: apply the sign carefully.
Exam Tip
(x) और (-3z) से (2\cdot x\cdot(-3z)=-6xz) मिलता है। परीक्षा में चिन्ह ध्यान से लगाएँ।
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