take a triangle and draw the medians and prove that they are concurrent
evaluate 87.12×7.52
-1A+OB+0C+0D+1E+1F = 0
0A-1B+0C+1D+1E+0F=0
OA+OB+1C+1D+0E-1F=0
0A+1B+0C+5D+0E+3F=5
OA+1B+0C+0D+4E+0F=5
2 $a^{n}$/2 $a^{n}$
5x4
2x-6y=12
x+3y=5
If x = tan , y = tan 2 , z = sec 2 , then which one of the following is true:
3x+2y+z=3
2
𝑥
+
𝑦
𝑧
=
0
2x+y+z=0
6
4
6x+2y+4z=6
0,5 x 3600
3y + 8x = 22
y + 6x + 9
