Question

2/1
14. If f(x)= x and g(x)= |x/, then S(x)+g(x) is equal to
1) 0
2) 2x
3) 2x if x 20
4) 2x if *s0
15. If f(x) = -x? for x <0, f(0) = 0, $(x) = x? for x>0, then on R, f(x) is​

Answer 1

Answer:

Correct option is

D

−

2

1

g(x)=x

2

+x−1

g(f(

4

5

))=4(

4

5

)

2

−10

4

5

+5=−

4

5

g(f(

4

5

))=f

2

(

4

5

)+f(

4

5

)−1

−

4

5

=f

2

(

4

5

)+f(

4

5

)−1

f

2

(

4

5

)+f(

4

5

)+

4

1

=0

(f(

4

5

)+

2

1

)

2

=0

f(

4

5

)=

2

−1

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