Find the exact value of the expression Do not use a calculat

Find the exact value of the expression. Do not use a calculator. 8 sec pi/3 + 7 cot pi/3 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. 8sec pi/3 + 7cot pi/3 (Simplify your answer Type an exact answer, using radicals as needed Use integers or fractions for any numbers in the expression.) B. The answer is undefined.

Solution

8sec(pi/3)+7cot(pi/3)   =    8sec60+ 7cot60

                                   = 8(2) +7(1/sqrt(3))

                                   = 16+ 7/sqrt(3)