यदि असमानता \(kx-6\le 2x+3\) का हल \(x\ge -3\) है, तो (k) का मान क्या है?

If the inequality \(kx-6\le 2x+3\) has solution \(x\ge -3\), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

A. (k=-1)

Step 1

Concept

We have ((k-2)x\le9). To get \(x\ge-3\), need (k-2<0) and \(\frac{9}{k-2}=-3\), so (k=-1).

Step 2

Why this answer is correct

The correct answer is A. (k=-1). We have ((k-2)x\le9). To get \(x\ge-3\), need (k-2<0) and \(\frac{9}{k-2}=-3\), so (k=-1).

Step 3

Exam Tip

((k-2)x\le9) है। \(x\ge-3\) पाने के लिए (k-2<0) और \(\frac{9}{k-2}=-3\), इसलिए (k=-1)।

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Mathematics Answer, Explanation and Revision Hints

यदि असमानता \(kx-6\le 2x+3\) का हल \(x\ge -3\) है, तो (k) का मान क्या है? / If the inequality \(kx-6\le 2x+3\) has solution \(x\ge -3\), what is the value of (k)?

Correct Answer: A. (k=-1). Explanation: ((k-2)x\le9) है। \(x\ge-3\) पाने के लिए (k-2<0) और \(\frac{9}{k-2}=-3\), इसलिए (k=-1)। / We have ((k-2)x\le9). To get \(x\ge-3\), need (k-2<0) and \(\frac{9}{k-2}=-3\), so (k=-1).

Which concept should I revise for this Mathematics MCQ?

We have ((k-2)x\le9). To get \(x\ge-3\), need (k-2<0) and \(\frac{9}{k-2}=-3\), so (k=-1).

What exam hint can help solve this Mathematics question?

((k-2)x\le9) है। \(x\ge-3\) पाने के लिए (k-2<0) और \(\frac{9}{k-2}=-3\), इसलिए (k=-1)।