Set Theory and Algebra MCQ

1:

Let f : R → R be defined by

   f(x)=     {x+2       (x  ≤ -1)

               { x2         (-1  ≤ x  ≤1)

               {2 - x        (x  ≥ 1)

Then value of f (-1.75) + f (0.5) + f (1.5) is

A.

0

B.

2

C.

1

D.

-1

 

Answer : C

Explanation :

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Option: A

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