`3/13-2/13+5/13` =

5/13-5/13 =

13/5-5/13 =

3/13+7/13+1/13

Work out the following : 7/13+2/13-5/13

4/13+9/13+2/13=-/13

2^13+2^13+2^13+2^13 = ?

If [(2+x,3,4),(1,-1,2),(x,1,-5)] is a singular matrix then x is (A) 13/25 (B) -25/13 (C) 5/13 (D) 25/13

The point on the line 3x-2y=1 which is closest to the origin is (A) (3/13, - 2/13) (B) (5/11, 2/11) (C) (3/5, 2/5) (D) none of these

Find : a. 4 (5)/(13)- 3 (7)/(13) + 2 (8)/(13)

Solve : 4/(13)+2/(13)+1/(13)