यदि (f(x)=2x+3) और (g(x)=x-1), तो (\(f\circ g\)(x)) क्या होगा?

If (f(x)=2x+3) and (g(x)=x-1), what is (\(f\circ g\)(x))?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. (2x+1)

Step 1

Concept

(\(f\circ g\)(x)=f(g(x))).

Step 2

Why this answer is correct

Put (g(x)=x-1) into (f).

Step 3

Exam Tip

(f(x-1)=2(x-1)+3=2x+1). चरण 1: (\(f\circ g\)(x)=f(g(x)))। चरण 2: (g(x)=x-1) को (f) में रखें। चरण 3: (f(x-1)=2(x-1)+3=2x+1)।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=2x+3) और (g(x)=x-1), तो (\(f\circ g\)(x)) क्या होगा? / If (f(x)=2x+3) and (g(x)=x-1), what is (\(f\circ g\)(x))?

Correct Answer: A. (2x+1). Explanation: चरण 1: (\(f\circ g\)(x)=f(g(x)))। चरण 2: (g(x)=x-1) को (f) में रखें। चरण 3: (f(x-1)=2(x-1)+3=2x+1)। / Step 1: (\(f\circ g\)(x)=f(g(x))). Step 2: Put (g(x)=x-1) into (f). Step 3: (f(x-1)=2(x-1)+3=2x+1).

Which concept should I revise for this Mathematics MCQ?

(\(f\circ g\)(x)=f(g(x))).

What exam hint can help solve this Mathematics question?

(f(x-1)=2(x-1)+3=2x+1). चरण 1: (\(f\circ g\)(x)=f(g(x)))। चरण 2: (g(x)=x-1) को (f) में रखें। चरण 3: (f(x-1)=2(x-1)+3=2x+1)।