यदि (f(x)=x-2+3x), तो (f(2)) क्या होगा?
If (f(x)=x-2+3x), what is (f(2))?
Explanation opens after your attempt
A. (10)
Concept
Put (x=2).
Why this answer is correct
(f(2)=22+3\cdot2=4+6=10).
Exam Tip
Do the square and multiplication in the correct order. चरण 1: (x=2) रखें। चरण 2: (f(2)=22+3\cdot2=4+6=10)। चरण 3: वर्ग और गुणा दोनों को सही क्रम में करें।
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