9/14+5/7+11/21
a-a
find the particular solution of the differential equation x(1+y²)dx-y(1+x²)dy =0, given that y=1 , when x=0.
267+85-21
square of (p + 2)
log a 6=0.5
expand (a-b)^2
expand (4x-y)^2
binomial of degree 60