Discover Questions

Find a basis of the subspace of R4 that consists of all vectors perpendicular to both [1,0,0,7] and [0,1,-9,5]. Please show work!? Find the indicated limit, if it exists. lim f(x), x approaches 9 {x+9 , x < 9} { 27-x , x>9}? On a scale 1-10 how nerdy is Brent woodson? Can any one graph y=-2x+4 using x and y intercept? Find a power series representation for f(x)=ln(x^2 +3). please show details :) thanks!?