Discover Questions

What are the values of a and b suchthat the following is true
lim x→0 (a-cos(bx))/(x^2)=2
a=?
b=+-? Find the volume bounded by y=5cos2x at x=0 and x=π/4
when rotates about x-axis through 360? What is true about the potential energy of an object moving in SHM? I have a 92.5 in trig. The final is worth 15, according to rogerhub I need a -57 to get a get 70. Is this accurate.? What kind of machine do we need to confirm the existence of gravitons?