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Definition of Functions

If f;R→ R, ...

Question

If $f; R \to R, g; R \to R$ and $g (x) = x + 3$ and $(f o g) (x) = (x + 3)^{2}$ , then the value of $f (- 3)$ is

A

- 9

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B

0

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C

9

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D

N o n e o f t h e s e

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Solution

The correct option is A $9$
ANSWER IS C

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Similar questions

R \to R

R \to R

f (x) = 2 x + 3, g (x) = x^{2} + 7

, then the values of

x

f [g (x)] = 25

f (x) = 20 \sum r = 0 a_{r} x^{r}

g (x) = 9 \sum r = 0 b_{r} x^{r} + 20 \sum r = 10 x^{r} .

f (x) = g (x + 1)

, then the value of

a_{10}

f (x) = 20 \sum r = 0 a_{r} x^{r}

g (x) = 9 \sum r = 0 b_{r} x^{r} + 20 \sum r = 10 x^{r} .

f (x) = g (x + 1),

then the value of

a_{10}

f^{''} (x) > 0, \forall x \in R, f^{'} (3) = 0

g (x) = f ({tan}^{2} x - 2 tan x + 4), 0 < x < \frac{π}{2}

g (x)

is increasing in

f'' (x) > 0, \forall x \in R, f' (3) = 0

g (x) = f ({tan}^{2} x - 2 tan x + 4), 0 < x < \frac{π}{2}

g (x)

is increasing in

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