Which of the following is a linear expression ?
a) x2×y+xy+1
b) 2x+3y+1
c) x3×y+xy+1
d) 345x2
2x+3y+1
x3×y+xy+1
345x2
x2×y+xy+1
A Linear expression is an algebraic expression in which the highest power of the variable is 1.
Hence 2x + 3y +1 is the right option.
b) x+y+1
d) 4x2+1
d) 345x
The solution of the differential equation x dydx+y=x2+3x+2 is