11/21 + 6/21
el doble de un numero aumentado en dos es igual a la mitad de 20
construct a quadrilateral ABCD, AB = BC = 6cm, AB = DC = 4.5 cm, angle BAD = 60 degree, also construct a triangle ABE equal in are...
1/10+6/10
Discuss for what values of a, b the simultaneous equations x+y+z=3; x+2y+2z=6; x+ay+3z=b have (i) no solution. (ii) a unique solut...
Find the rank of a 4x4 matrices
-15+x/5+2x+x+2x=0
FIND THE SUM OF 2/6 AND 2 4/6
x+y=4 and y=2x+1
prove that under root 5 is irrational
