Evaluate the following algebraic expression x2+2y for x=1 & y=1.
Find the values of x and y for x+12y=92 14x−16y=56
Find the derivative of y=√x2+1
Which of the following is a linear expression ?
a) x2×y+xy+1
b) x+y+1
c) x3×y+xy+1
d) 4x2+1