Question

find the value of :
tan² 30° + tan² 45° + tan² 60°

Answer 1

tan² 30° + tan² 45° + tan² 60° = `(1/sqrt3)^2 + 1^2 + (sqrt3)^2 = (1)/(3) + 1+ 3 = (13)/(3) = 4(1)/(3)`