Discover Questions

Use a half-angle formula to find the exact value of the expression.
cos 3pi/8? How to study? What is the volume of a cylinder with a diameter of 1 foot and a height of 14 inches? Determine if this graph is even, odd, or neither. f(x)=x^3+x^2+4.? If a series a(n) converges (0 to inf), then does sin(a(n)) converge?