Answers

2014-11-10T19:54:14+05:30
2×1÷root3+2 (1)+2 (root3) 2÷root3+2+2root3 8+2root3÷3
0
2014-11-10T19:55:13+05:30
tan60+tan90+tan120
= \sqrt{3} +1-cot30
=  \sqrt{3} +1- \sqrt{3}
=1
0
its tan square 30 added tan sqaure 45 and tan square 60:)