Principle Of Mathematical Induction

Question
CBSEENMA11013979

Show that: cosA. space cos 2 straight A. space cos 2 squared straight A. space cos 2 cubed straight A. space......... cos space 2 to the power of straight n minus 1 end exponent space straight A space equals space fraction numerator sin space 2 to the power of straight n straight A over denominator 2 to the power of straight n sinA end fraction

Solution

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