किस स्थिति में ((k+2)x-3+(5-k)x-2+7) की घात (2) होगी?

Under which condition will ((k+2)x-3+(5-k)x-2+7) have degree (2)?

Explanation opens after your attempt
Correct Answer

D. (k=-2)

Step 1

Concept

For degree (2), the coefficient of \(x^3\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k+2=0), (k=-2).

Step 2

Why this answer is correct

The correct answer is D. (k=-2). For degree (2), the coefficient of \(x^3\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k+2=0), (k=-2).

Step 3

Exam Tip

घात (2) के लिए \(x^3\) का गुणांक शून्य होना चाहिए और \(x^2\) का गुणांक अशून्य रहना चाहिए। (k+2=0) से (k=-2) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

किस स्थिति में ((k+2)x-3+(5-k)x-2+7) की घात (2) होगी? / Under which condition will ((k+2)x-3+(5-k)x-2+7) have degree (2)?

Correct Answer: D. (k=-2). Explanation: घात (2) के लिए \(x^3\) का गुणांक शून्य होना चाहिए और \(x^2\) का गुणांक अशून्य रहना चाहिए। (k+2=0) से (k=-2) मिलता है। / For degree (2), the coefficient of \(x^3\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k+2=0), (k=-2).

Which concept should I revise for this Mathematics MCQ?

For degree (2), the coefficient of \(x^3\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k+2=0), (k=-2).

What exam hint can help solve this Mathematics question?

घात (2) के लिए \(x^3\) का गुणांक शून्य होना चाहिए और \(x^2\) का गुणांक अशून्य रहना चाहिए। (k+2=0) से (k=-2) मिलता है।