Annual rate of interest = 6.5 %=6.5%equals, 6, point, 5, percent Period = 4=4 equals, 4 years
Total interest= 1222=1222 equals, 1222 rupees

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