Can #tan(x)=cot(x)#? If yes, list all possible values of #x#?

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Answer 1 · 2018-03-26T12:54:02

see below

#tanx=cotx#

#tanx=1/tanx#

#=>tan^2x=1#

#=>tanx=sqrt1#

#x=tan^(-1)+-1#

principal value #x=pi/4#

since the only option with #pi/4#

is the first one

we have

#(2n+1)pi/4#