Consider a function f: [0, (pi)/(2)] to ...

Consider a function `f: [0, (pi)/(2)] to R` given by `f (x) = sin x and g : [0, (pi)/(2)] to R` given by `g (x) = cos x,` Show that f and g are one-one but f + g is not one-one.

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The correct Answer is:

`f + g`

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