Maths-
General
Easy
Question
Let f : R R and g : R R be two oneone and onto functions such that they are the mirror images of each other about the line y = a. If h(x) = f(x) + g(x), then h(x) is
- oneone onto
- oneone into
- many-one onto
- many-one into
The correct answer is: many-one into
Let for particular x0
f(x0) = a + k, then g(x0) = a k
h(x0) = 2a
h(x) = 2axR
h(x) is manyone into.
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