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The value of sum from n equals 1 to straight infinity of   fraction numerator tan begin display style space end style open parentheses theta over 2 to the power of n close parentheses over denominator 2 to the power of n minus 1 end exponent cos space theta over 2 to the power of n minus 1 end exponent end fraction is

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  1. fraction numerator 2 over denominator sin space 2 theta end fraction plus 1 over theta
  2. fraction numerator 2 over denominator sin space 2 theta end fraction minus 1 over theta
  3. fraction numerator 1 over denominator sin space theta end fraction minus 1 over theta
  4. fraction numerator 1 over denominator sin 2 theta end fraction minus 1 over theta

    Answer:The correct answer is: fraction numerator 2 over denominator sin space 2 theta end fraction minus 1 over theta

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