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If xn =cos ((pi)/(2^(n)))+isin((pi)/(2^(...

If `x_n =cos ((pi)/(2^(n)))+isin((pi)/(2^(n)))`Prove that `x_1 x_2…..x_oo=-1`

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CBSE COMPLEMENTARY MATERIAL-COMPLEX NUMBERS AND QUADRATIC EQUATIONS -Short Answer Type Questions
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  3. If xn =cos ((pi)/(2^(n)))+isin((pi)/(2^(n)))Prove that x1 x2…..xoo=-1

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  10. if (x+i y)^(1/3) = a+ib then (x/a) + (y/b) equals to

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