Question

tan square 30 + tan square 60+ tan square 45

Answer 1

=(1/√3)^2 + (√3)^2 + (1)^2
=1/3 + 3 + 1
=1+9+3
----–--
3
=13/3

Answer 2

1/√3+√3+1√²
=2+3÷√3
so the answer by substituing is 5 by √3