Saved Bookmarks
| 1. |
\begin { equation } \cot ^{2} 60^{\circ}+\sin ^{2} 45^{\circ}+\sin ^{2} 30^{\circ}+\cos ^{2} 90^{\circ}= \end { equation } |
|
Answer» cot^2 60+sin^2 45+sin^2 30+cos^2 90=1/3+1/2+1/4=(4+6+3)/12=13/12 |
|