(x+1)^2 = 9
-x+1=-5
30.30+x.x=34.34
sin 2x /sin 3x + cos 2x/ cos 3x = 2sin 5x cosec 6x
2+(-3)
what is the sum of the interior angles of a polygon with twelve sides
7r+4t+2r+3t=a
Find the sum of the interior angles of a polygon with 12 sides.
15 + 63 + 72 + _ + 85 +165 truw or false
