Find the value of sin 420°
\(\frac{3}{\sqrt{2}}\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{2}{\sqrt{3}}\)
\(\frac{1}{\sqrt{3}}\)
The following diagram is a combination of four figures, A, B, C and D. Figure A represents the number of people who drink tea. Figure B represents the number of people who drink coffee. Figure C represents the number of people who drink milk. Figure D represents the number of people who drink cold drinks.
How many people do not drink coffee or milk?