फलन (f(x)=\sqrt{x-2+4x-12}) का डोमेन क्या है?

What is the domain of (f(x)=\sqrt{x-2+4x-12})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-6]\cup[2,\infty\))

Step 1

Concept

The inside expression is (x-2+4x-12=(x+6)(x-2)) and it must be \(\ge0\). In exams choose the outer intervals for an upward quadratic.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-6]\cup[2,\infty\)). The inside expression is (x-2+4x-12=(x+6)(x-2)) and it must be \(\ge0\). In exams choose the outer intervals for an upward quadratic.

Step 3

Exam Tip

अंदर की राशि (x-2+4x-12=(x+6)(x-2)) है और उसे \(\ge0\) होना चाहिए। परीक्षा में upward quadratic के लिए बाहरी अंतराल चुनें।

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Mathematics Answer, Explanation and Revision Hints

फलन (f(x)=\sqrt{x-2+4x-12}) का डोमेन क्या है? / What is the domain of (f(x)=\sqrt{x-2+4x-12})?

Correct Answer: A. (\(-\infty,-6]\cup[2,\infty\)). Explanation: अंदर की राशि (x-2+4x-12=(x+6)(x-2)) है और उसे \(\ge0\) होना चाहिए। परीक्षा में upward quadratic के लिए बाहरी अंतराल चुनें। / The inside expression is (x-2+4x-12=(x+6)(x-2)) and it must be \(\ge0\). In exams choose the outer intervals for an upward quadratic.

Which concept should I revise for this Mathematics MCQ?

The inside expression is (x-2+4x-12=(x+6)(x-2)) and it must be \(\ge0\). In exams choose the outer intervals for an upward quadratic.

What exam hint can help solve this Mathematics question?

अंदर की राशि (x-2+4x-12=(x+6)(x-2)) है और उसे \(\ge0\) होना चाहिए। परीक्षा में upward quadratic के लिए बाहरी अंतराल चुनें।