Question #df4b5

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Answer 1 · 2018-02-19T13:58:03

#cot((4pi)/15)=0.833#

To find
#cot((4pi)/15)#

#pi =180^@#

#(4pi/15)=(4xx180)/15=720/15=48#

#cottheta=costheta/sintheta#

#cot48^@=cos48^@/sin48^@#

#=(-0.640)/(-0.768)#

#=0.833#