- Was the earth ever closer to the sun than it is now?

Discover Questions

What is 2x (squared) plus x (squared)? My mind is going crazy over things such as cells, producing saliva, and other things. Please help!? Differntiate x^(-4/lnx)? ***URGENT****PROVE THE IDENTITY
sin(theta)/1-cos(theta)=cot(theta) + csc(theta) *I keep getting cos(theta)+1/sin(theta) instead of minus -1? What's the derivative of ln(x^2-1)^3?