If fx-3x-1- gx-x3-2- then f-gfg0-

The correct option is D 32 f(0)=1; g(0)=2 (f+g)(x)=f(x)+g(x) , fg(x)=f(x)g(x) 1+21.2=32 ...

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Byju's Answer

Standard XII

Mathematics

Definition of Functions

If fx=3x+1,...

Question

If $f (x) = 3 x + 1, g (x) = x^{3} + 2,$ then $\frac{f + g}{f g} (0) =$

x

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\frac{3}{2}

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Solution

The correct option is D $\frac{3}{2}$
$f (0) = 1;$
$g (0) = 2$
$(f + g) (x) = f (x) + g (x)$ , $f g (x) = f (x) g (x)$
$\frac{1 + 2}{1.2} = \frac{3}{2}$

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If f(x)=3x+1,g(x)=x3+2, then f+gfg(0)=

The correct option is D 32f(0)=1;g(0)=2(f+g)(x)=f(x)+g(x), fg(x)=f(x)g(x)1+21.2=32

If $f (x) = 3 x + 1, g (x) = x^{3} + 2,$ then $\frac{f + g}{f g} (0) =$

The correct option is D $\frac{3}{2}$
$f (0) = 1;$
$g (0) = 2$
$(f + g) (x) = f (x) + g (x)$ , $f g (x) = f (x) g (x)$
$\frac{1 + 2}{1.2} = \frac{3}{2}$