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What is the value of sum of n terms of the series whose nth term is(2sinA) raised to power n where n belongs to +ve integers. help yar, I am really confused for it. I just need it to solve a big problem of my life

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2 sinA + (2 sina)^2................ apply the summation formula of gp........a(1-r^n)/r-1

22 g If n tends to infinite then note that 2sinA is not always less than 1

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