How do I solve: [sin (pi/3)] + [cos (pi/6)]? <--- "pi" is 3.14...... I think that [sin (pi/3)]= (square root 3) divided by 2 AND that [cos (pi/6)]= (square root 3) divided by 2. Now I can't remember how to add fractions containing square roots. My textbook says the answer is: square root 3. I just have NO IDEA how to get there. Please help! Thanks in advance.