यदि \(f:\mathbb{R}\to\mathbb{R}\) और (f(x)=x-2-2x), तो (f(1+h)-f(1)) का मान क्या है?
If \(f:\mathbb{R}\to\mathbb{R}\) and (f(x)=x-2-2x), what is the value of (f(1+h)-f(1))?
Explanation opens after your attempt
A. \(h^2\)
Concept
(f(1+h)=(1+h)2-2(1+h)=h-2-1).
Why this answer is correct
(f(1)=1-2=-1).
Exam Tip
The difference is (\(h^2-1\)-(-1)=h-2). चरण 1: (f(1+h)=(1+h)2-2(1+h)=h-2-1)। चरण 2: (f(1)=1-2=-1)। चरण 3: अंतर (\(h^2-1\)-(-1)=h-2) है।
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