Answers

2014-07-31T19:10:52+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Tan² 30 + tan² 45 + tan² 60 =  sin² 30 / cos² 30 + sin² 45 / cos² 45 + sin² 60 / cos² 60
 sin 30 = 1/2  = cos 60
sin 60 = √3/2  = cos 30
sin 45 = cos 45 = 1/√2
L H S =  (1/√3 )²  + 1² + (√3)²  = 4 + 1/3 = 13/3
2 4 2