\(x^3+y^3+z^3-3xyz\) में यदि (x+y+z) गुणनखंड है, तो दूसरा गुणनखंड क्या होगा?

If (x+y+z) is a factor of \(x^3+y^3+z^3-3xyz\), what is the other factor?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \( x^2+y^2+z^2-xy-yz-zx \)

Step 1

Concept

This is the identity (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)). Exam tip: remember the three-variable cubic identity.

Step 2

Why this answer is correct

The correct answer is A. \( x^2+y^2+z^2-xy-yz-zx \). This is the identity (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)). Exam tip: remember the three-variable cubic identity.

Step 3

Exam Tip

यह प्रसिद्ध पहचान (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)) है। परीक्षा में तीन चर वाली घन पहचान याद रखें।

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Mathematics Answer, Explanation and Revision Hints

\(x^3+y^3+z^3-3xyz\) में यदि (x+y+z) गुणनखंड है, तो दूसरा गुणनखंड क्या होगा? / If (x+y+z) is a factor of \(x^3+y^3+z^3-3xyz\), what is the other factor?

Correct Answer: A. \( x^2+y^2+z^2-xy-yz-zx \). Explanation: यह प्रसिद्ध पहचान (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)) है। परीक्षा में तीन चर वाली घन पहचान याद रखें। / This is the identity (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)). Exam tip: remember the three-variable cubic identity.

Which concept should I revise for this Mathematics MCQ?

This is the identity (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)). Exam tip: remember the three-variable cubic identity.

What exam hint can help solve this Mathematics question?

यह प्रसिद्ध पहचान (x-3+y-3+z-3-3xyz=(x+y+z)\(x^2+y^2+z^2-xy-yz-zx\)) है। परीक्षा में तीन चर वाली घन पहचान याद रखें।