You claim to have a magic coin that will land on heads whenever you want. your friend dares you to prove it by tossing 4 heads in a row. assuming the coin is fair, what is the probability that your magic will fail?

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