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
A. (4)
Concept
(f(2)=22+2k=4+2k).
Why this answer is correct
Given (4+2k=12).
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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