Discover Questions

Why does sqrt(4)-sqrt(16) not equal two? If sqrt(4) equals +-2 and sqrt(16) equals +-4, then could you not say -2+4 = 2? What is the answer to this problem: 3(2p-3)? Why doesn’t water at the bottom of the earth fall off and go into space? How is the answer 7 for this problem? Find all θ between 0 and 2π that satisfy the following: tan θ = -4.509 and cos θ > 0.?