(x+1)/(x+3)+(2x-1)/(x+2)
125+897=
𝑧4 =
5
2
+ 3i
Solve: 3a-9b-7c=0,2a-b-c=3,-2a-b=-2
1630,9*53
how many digits are required to number the pages of a book from 1 to 360?
1690,9*53
Find the area of the region that lies inside both curves.
r = 6 + cos(𝜃), r = 6 − cos(𝜃)
