13/288
15/288
2x1 + x2 + x3 = 7
3x1 + 2x2 - x3 = 4
x1 - 4x2 + 2x3 = -1
please use gaussian elimination to solve the systems
solve the triangle A=36, B=98 and c=16
find the area of a triangle with sides 55, 85 and 100
77/2025
72/2025
5x+3>4
9<2x+3
13/1312
