यदि (f(x)=2x+3) और (f(a)=11), तो (a) का मान क्या होगा?
If (f(x)=2x+3) and (f(a)=11), what is the value of (a)?
Explanation opens after your attempt
A. (4)
Concept
(f(a)=2a+3).
Why this answer is correct
Given (2a+3=11), so (2a=8).
Exam Tip
Hence (a=4). चरण 1: (f(a)=2a+3) होगा। चरण 2: दिया है (2a+3=11), इसलिए (2a=8)। चरण 3: अतः (a=4)।
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