Question

cot(108^0)
A) 2.47
B) -0.32
C) 0.41
D) -3.08
i need to learn how to do the cot

Answer 1

cotx=1/tan x

Answer 2

find

tan(108) then take the reciprocal

Answer 3

= cos(108)/sin(108)

Answer 4

its 2nd quadrant so will be negative

Answer 5

i thought 1/tan = cos/sin @Krishnadas

Answer 6

tan = sin/cos so the reciprocals are are you have written

Answer 7

@arria both are same

Answer 8

tanx=sinx/cosx ---->cotx=1/tanx=cosx/sinx