Question

if tan15=2-√3,then find the value of tan75

Answer 1

hi friend,

given tan15=2-√3

=tan(90-75)=2-√3

=cot 75 =2-√3

=1/tan75=2-√3

tan75=1/2-√3

multiplying and dividing with 2+√3,we get

tan75=2+√3/(4-3)

tan75=2+√3

I hope this will help u :)