यदि (f(x)=2x-7) और (g(x)=x+5) हों, तो ((f+g)(3)) का मान क्या है?

If (f(x)=2x-7) and (g(x)=x+5), what is the value of ((f+g)(3))?

Explanation opens after your attempt
Correct Answer

A. (7)

Step 1

Concept

(f(3)=-1) and (g(3)=8), so ((f+g)(3)=7). Direct substitution is the safest method.

Step 2

Why this answer is correct

The correct answer is A. (7). (f(3)=-1) and (g(3)=8), so ((f+g)(3)=7). Direct substitution is the safest method.

Step 3

Exam Tip

(f(3)=-1) और (g(3)=8), इसलिए ((f+g)(3)=7)। direct substitution सबसे सुरक्षित तरीका है।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=2x-7) और (g(x)=x+5) हों, तो ((f+g)(3)) का मान क्या है? / If (f(x)=2x-7) and (g(x)=x+5), what is the value of ((f+g)(3))?

Correct Answer: A. (7). Explanation: (f(3)=-1) और (g(3)=8), इसलिए ((f+g)(3)=7)। direct substitution सबसे सुरक्षित तरीका है। / (f(3)=-1) and (g(3)=8), so ((f+g)(3)=7). Direct substitution is the safest method.

Which concept should I revise for this Mathematics MCQ?

(f(3)=-1) and (g(3)=8), so ((f+g)(3)=7). Direct substitution is the safest method.

What exam hint can help solve this Mathematics question?

(f(3)=-1) और (g(3)=8), इसलिए ((f+g)(3)=7)। direct substitution सबसे सुरक्षित तरीका है।