Question 6, 6.5.31 HW Score: 50%, 5 of 10 points Save x Points: 0 of 1 Write the following complex number in rectangular form. 6 cos - + i sin 6 cos - + i sin (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Type your answer in the form a + bi. Rationalize all denominators.)