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Let G Let G be the sum of infinite geome...

Let G Let G be the sum of infinite geometric series whose first term is `sintheta` and common ratio is `costheta`, while G' be the sum of a different infinite geometric series whose first term `costheta` and common ratio is `sintheta`. Find the number of solutions of the equation, `G=G'` in `[0, 2pi]` is

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