10 times 10 times 100 divded by 1 times that again 10000

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

How do you do the foil method with polynomials?

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis