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Let tan(2pi|sintheta|)=cot(2pi|costheta|...

Let `tan(2pi|sintheta|)=cot(2pi|costheta|)` , where `theta in R` and `f(x)=(|sintheta|+|costheta"|"")"^x ,xgeq1.` The range of `f(x)` include 1 (b) 2 (c) 3 (d) 4

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