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Let fx=kcosxπ-2x,where x≠π23,where x=π2 and if limx→π2 fx=fπ2, find the value of k.

Answer» Let fx=kcosxπ-2x,where xπ23,where x=π2 and if limxπ2 fx=fπ2, find the value of k.


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