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AP EAMCET201726 Apr 2017Evening ShiftMathematicsFunctionsActual

Let f: A B and g: B C be any two functions and g f: A C is one-one, then

Options

  1. Af and g are both one-one
  2. Bf is one-one and g need not be one-one
  3. Cg is one-one and f need not be one-one
  4. Dboth f, g need not be one-one

Correct answer

B. f is one-one and g need not be one-one

Step-by-step solution

No solution. Refer to answer key.

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