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[" If "sum(r=15)^(29)cos((r pi)/(2)+thet...

[" If "sum_(r=15)^(29)cos((r pi)/(2)+theta)s_(1)" and "],[sum_(r=15)^(29)sin((r pi)/(2)+theta)=s_(2)," then "(s_(1))/(s_(2))],[" equals "]

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