6cos(2kπ+π/3)-2sin(2kπ+π/6)+3tan(2kπ) k€Z
=6cos(π/3)-2sin(π/6)+3tan(0)
=3-1+0=2
6cos(2kπ+π/3)-2sin(2kπ+π/6)+3tan(2kπ) k€Z
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