यदि (f(x)=x-2) और (g(x)=2x) हैं, तो ((f+g)(a)) का मान क्या है?

If (f(x)=x-2) and (g(x)=2x), what is the value of ((f+g)(a))?

Explanation opens after your attempt
Correct Answer

A. \(a^2+2a\)

Step 1

Concept

((f+g)(a)=f(a)+g(a)=a-2+2a). When the variable changes, replace every (x) by that value.

Step 2

Why this answer is correct

The correct answer is A. \(a^2+2a\). ((f+g)(a)=f(a)+g(a)=a-2+2a). When the variable changes, replace every (x) by that value.

Step 3

Exam Tip

((f+g)(a)=f(a)+g(a)=a-2+2a)। चर बदलने पर हर (x) की जगह वही मान रखें।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2) और (g(x)=2x) हैं, तो ((f+g)(a)) का मान क्या है? / If (f(x)=x-2) and (g(x)=2x), what is the value of ((f+g)(a))?

Correct Answer: A. \(a^2+2a\). Explanation: ((f+g)(a)=f(a)+g(a)=a-2+2a)। चर बदलने पर हर (x) की जगह वही मान रखें। / ((f+g)(a)=f(a)+g(a)=a-2+2a). When the variable changes, replace every (x) by that value.

Which concept should I revise for this Mathematics MCQ?

((f+g)(a)=f(a)+g(a)=a-2+2a). When the variable changes, replace every (x) by that value.

What exam hint can help solve this Mathematics question?

((f+g)(a)=f(a)+g(a)=a-2+2a)। चर बदलने पर हर (x) की जगह वही मान रखें।