If `x=10.0pm0.1` and `y=10.0pm0.1`, then 2x-2y is equal to

Let y=l-z where l=2.0 pm 0.1, z=1.0 pm 0.1 then the vaule of y is given by

The measures of length and breadth of a rectangle are l=(30.0pm0.2) cm and b=(10.0pm0.1) cm. What is the percentage error and absolute error in area?

If [[x,1]] [[1,0],[-2,0]] =0 then x is equal to

If l_(1) = (10.0 pm 0.1) cm and l_(2) = (9.0 pm 0.1) cm , find the their sum , difference and error in each .

If l_(1) = (10.0 pm 0.1) cm and l_(2) = (9.0 pm 0.1) cm , find the their sum , difference and error in each .

If A=[[x,1]][[1,0],[-2,0]] =0 , then x is equals to

The system of equations 2x+y-5=0, x-2y+1=0 and 2x-14y-a=0 is consistent.Then a is equal to

If the reflection of 2x+y-1=0 about the line x+y+3=0, is ax+by+10=0 then b is equal to

Let A=[(x,2y),(-1,y)], x , y in R If AA'= [(1,0),(0,alpha)] (alpha in R) , then alpha+y^2 is equal to :

If 0.2x =10-0.5y, then 10y+4x= 1/2x - 2.3 y =7 ax -8y=-1