यदि (f(x)=3) और (g(x)=x-2-7x) हैं, तो ((fg)(x)) क्या होगा?

If (f(x)=3) and (g(x)=x-2-7x), what is ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(3x^2-21x\)

Step 1

Concept

((fg)(x)=3\(x^2-7x\)=3x-2-21x). When multiplying by a constant function, multiply every term.

Step 2

Why this answer is correct

The correct answer is A. \(3x^2-21x\). ((fg)(x)=3\(x^2-7x\)=3x-2-21x). When multiplying by a constant function, multiply every term.

Step 3

Exam Tip

((fg)(x)=3\(x^2-7x\)=3x-2-21x)। स्थिर फलन से गुणा करते समय हर पद पर गुणा करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=3) और (g(x)=x-2-7x) हैं, तो ((fg)(x)) क्या होगा? / If (f(x)=3) and (g(x)=x-2-7x), what is ((fg)(x))?

Correct Answer: A. \(3x^2-21x\). Explanation: ((fg)(x)=3\(x^2-7x\)=3x-2-21x)। स्थिर फलन से गुणा करते समय हर पद पर गुणा करें। / ((fg)(x)=3\(x^2-7x\)=3x-2-21x). When multiplying by a constant function, multiply every term.

Which concept should I revise for this Mathematics MCQ?

((fg)(x)=3\(x^2-7x\)=3x-2-21x). When multiplying by a constant function, multiply every term.

What exam hint can help solve this Mathematics question?

((fg)(x)=3\(x^2-7x\)=3x-2-21x)। स्थिर फलन से गुणा करते समय हर पद पर गुणा करें।