3tan30 radical 1-2tan60 + tan2 power 60 ° + tan45 times cos45

3tan30 radical 1-2tan60 + tan2 power 60 ° + tan45 times cos45

So the result is: root 3-1-2 times root 3 + 3 + (root 2) / 2 = 2-root 3 + (root 2) / 2