Evaluate the following without using a calculator tan sin -1 18 Note: Write your answer as a fraction, do not write decimal approximations, for example, write 1/2 but not 0.5. If the answer has a squre root then use the equation editor or use parentheses, for example, for : 3 write (3)^(1/2) do not write (3)~{1/2} or (3)[1/2]. tan sin -1 18