यदि (f(x)=\frac{3x-2}{5}) और (g(x)=5x+2) हैं तो (\(f\circ g\)(x)) क्या है?
If (f(x)=\frac{3x-2}{5}) and (g(x)=5x+2) then what is (\(f\circ g\)(x))?
Explanation opens after your attempt
Correct Answer
A. \(3x+\frac{4}{5}\)
Concept
(\(f\circ g\)(x)=\frac{3(5x+2)-2}{5}=\frac{15x+4}{5}=3x+\frac{4}{5}). Substitute the whole (g(x)) in place of (x).
Why this answer is correct
The correct answer is A. \(3x+\frac{4}{5}\). (\(f\circ g\)(x)=\frac{3(5x+2)-2}{5}=\frac{15x+4}{5}=3x+\frac{4}{5}). Substitute the whole (g(x)) in place of (x).
Exam Tip
(\(f\circ g\)(x)=\frac{3(5x+2)-2}{5}=\frac{15x+4}{5}=3x+\frac{4}{5})। अंदर के पूरे (g(x)) को (x) की जगह रखें।
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