यदि (p(x)=(a-2)x-4+(a+1)x-3+6) को ठीक घन बहुपद बनाना हो, तो (a) का मान क्या होगा?

If (p(x)=(a-2)x-4+(a+1)x-3+6) is to be exactly a cubic polynomial, what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

For exactly cubic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^3\) must remain non-zero. From (a-2=0), (a=2).

Step 2

Why this answer is correct

The correct answer is A. (2). For exactly cubic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^3\) must remain non-zero. From (a-2=0), (a=2).

Step 3

Exam Tip

ठीक घन के लिए \(x^4\) का गुणांक शून्य होना चाहिए और \(x^3\) का गुणांक अशून्य रहना चाहिए। (a-2=0) से (a=2) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

यदि (p(x)=(a-2)x-4+(a+1)x-3+6) को ठीक घन बहुपद बनाना हो, तो (a) का मान क्या होगा? / If (p(x)=(a-2)x-4+(a+1)x-3+6) is to be exactly a cubic polynomial, what is the value of (a)?

Correct Answer: A. (2). Explanation: ठीक घन के लिए \(x^4\) का गुणांक शून्य होना चाहिए और \(x^3\) का गुणांक अशून्य रहना चाहिए। (a-2=0) से (a=2) मिलता है। / For exactly cubic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^3\) must remain non-zero. From (a-2=0), (a=2).

Which concept should I revise for this Mathematics MCQ?

For exactly cubic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^3\) must remain non-zero. From (a-2=0), (a=2).

What exam hint can help solve this Mathematics question?

ठीक घन के लिए \(x^4\) का गुणांक शून्य होना चाहिए और \(x^3\) का गुणांक अशून्य रहना चाहिए। (a-2=0) से (a=2) मिलता है।