यदि (f(x)=x-2+kx) और (f(2)=12), तो (k) का मान क्या होगा?

If (f(x)=x-2+kx) and (f(2)=12), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

(f(2)=22+2k=4+2k).

Step 2

Why this answer is correct

Given (4+2k=12).

Step 3

Exam Tip

(2k=8), so (k=4). चरण 1: (f(2)=22+2k=4+2k)। चरण 2: दिया है (4+2k=12)। चरण 3: (2k=8), इसलिए (k=4)।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2+kx) और (f(2)=12), तो (k) का मान क्या होगा? / If (f(x)=x-2+kx) and (f(2)=12), what is the value of (k)?

Correct Answer: A. (4). Explanation: चरण 1: (f(2)=22+2k=4+2k)। चरण 2: दिया है (4+2k=12)। चरण 3: (2k=8), इसलिए (k=4)। / Step 1: (f(2)=22+2k=4+2k). Step 2: Given (4+2k=12). Step 3: (2k=8), so (k=4).

Which concept should I revise for this Mathematics MCQ?

(f(2)=22+2k=4+2k).

What exam hint can help solve this Mathematics question?

(2k=8), so (k=4). चरण 1: (f(2)=22+2k=4+2k)। चरण 2: दिया है (4+2k=12)। चरण 3: (2k=8), इसलिए (k=4)।