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Let S be the set of all triangles and R^...

Let S be the set of all triangles and `R^+` be the set of positive real numbers, then the function `f:S-> R^+, f(Delta) =` Perimeter of `Delta in S,` then 'f' is

A

injective but not surjective

B

surjective but not injective

C

injective as well as surjective

D

neither injective nor surjective

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The correct Answer is:
B
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