यदि (f(x)=x+1), (g(x)=x-1) और ((af+bg)(x)=5x+1), तो (a+b) क्या है?

If (f(x)=x+1), (g(x)=x-1), and ((af+bg)(x)=5x+1), what is (a+b)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

(af+bg=(a+b)x+(a-b)), so (a+b=5). In such questions, compare the coefficient of (x) directly.

Step 2

Why this answer is correct

The correct answer is A. (5). (af+bg=(a+b)x+(a-b)), so (a+b=5). In such questions, compare the coefficient of (x) directly.

Step 3

Exam Tip

(af+bg=(a+b)x+(a-b)), इसलिए (a+b=5)। ऐसे प्रश्न में (x) के गुणांक को सीधे मिलाएं।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x+1), (g(x)=x-1) और ((af+bg)(x)=5x+1), तो (a+b) क्या है? / If (f(x)=x+1), (g(x)=x-1), and ((af+bg)(x)=5x+1), what is (a+b)?

Correct Answer: A. (5). Explanation: (af+bg=(a+b)x+(a-b)), इसलिए (a+b=5)। ऐसे प्रश्न में (x) के गुणांक को सीधे मिलाएं। / (af+bg=(a+b)x+(a-b)), so (a+b=5). In such questions, compare the coefficient of (x) directly.

Which concept should I revise for this Mathematics MCQ?

(af+bg=(a+b)x+(a-b)), so (a+b=5). In such questions, compare the coefficient of (x) directly.

What exam hint can help solve this Mathematics question?

(af+bg=(a+b)x+(a-b)), इसलिए (a+b=5)। ऐसे प्रश्न में (x) के गुणांक को सीधे मिलाएं।