Maths-
General
Easy

Question

If f(x) =fraction numerator 1 minus x over denominator 1 plus x end fraction, then f left square bracket f left parenthesis sin invisible function application theta right parenthesis right square bracketequals

  1. sin invisible function application theta
  2. tan invisible function application left parenthesis theta divided by 2 right parenthesis
  3. cot invisible function application left parenthesis theta divided by 2 right parenthesis
  4. cosec invisible function application theta

The correct answer is: sin invisible function application theta

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