If a = 8 `+-` 0.08 and b = 6 `+-` 0.06, Let x = a + b, y = a – b, z = a`xx`b. The correct order of % error in x,y and z

If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : x - y +z

If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : x + y + z

If P(A) = 0.4, P(B) = 0.8 and P(B|A) = 0.6 then P(A cup B) =

If x = a^2 - b^2, y = 2ab, z = a^2+b^2 , then prove that x^6+y^6-z^6+3x^2y^2z^2=0

If P (A) =0.4 , P (B) =0.8 and P (B |A) = 0.6 then P (A U B) is equal to

Let A and B be two sets such that n(A) = 3 a n d n(B) = 2 . If (x , 1), (y , 2), (z , 1) are in A xx B. find A and B. where x, y and z are distinct elements.

If x+y+z=0 prove that |a x b y c z c y a z b x b z c x a y|=x y z|a b cc a bb c a|

If x/(b + c -a) = y/(c + a - b) = z/(a + b -c) , then show that (b -c) x + (c-a) y + (a -b) z = 0 .

If x =a, y=b, z=c is a solution of the system of linear equations x + 8y + 7z =0, 9 x + 2y + 3z =0, x + y+z=0 such that point (a,b,c ) lies on the plane x + 2y + z=6, then 2a+ b+c equals