यदि (f(x)=x-2-15) और वास्तविक डोमेन \(\mathbb{R}\) है, तो रेंज क्या है?

If (f(x)=x-2-15) and the real domain is \(\mathbb{R}\), what is the range?

Explanation opens after your attempt
Correct Answer

A. \([-15,\infty\))

Step 1

Concept

Since \(x^2\ge0\), \(x^2-15\ge-15\). In exams remember that the minimum value of the square function is (0).

Step 2

Why this answer is correct

The correct answer is A. \([-15,\infty\)). Since \(x^2\ge0\), \(x^2-15\ge-15\). In exams remember that the minimum value of the square function is (0).

Step 3

Exam Tip

क्योंकि \(x^2\ge0\), इसलिए \(x^2-15\ge-15\)। परीक्षा में square function की minimum value (0) याद रखें।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2-15) और वास्तविक डोमेन \(\mathbb{R}\) है, तो रेंज क्या है? / If (f(x)=x-2-15) and the real domain is \(\mathbb{R}\), what is the range?

Correct Answer: A. \([-15,\infty\)). Explanation: क्योंकि \(x^2\ge0\), इसलिए \(x^2-15\ge-15\)। परीक्षा में square function की minimum value (0) याद रखें। / Since \(x^2\ge0\), \(x^2-15\ge-15\). In exams remember that the minimum value of the square function is (0).

Which concept should I revise for this Mathematics MCQ?

Since \(x^2\ge0\), \(x^2-15\ge-15\). In exams remember that the minimum value of the square function is (0).

What exam hint can help solve this Mathematics question?

क्योंकि \(x^2\ge0\), इसलिए \(x^2-15\ge-15\)। परीक्षा में square function की minimum value (0) याद रखें।