The function f: R R defined by f(x)=2^x+2^ |x| is: - Vidyadip

MCQ

The function $f: R \rightarrow R$ defined by $f(x)=2^x+2^{|x|}$ is:

A
One$-$one and onto.
B
Many$-$one and onto.
✓
One$-$one and into.
D
Many$-$one and into.

✓

Answer

Correct option: C.

One$-$one and into.

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