If `[(x-y,0),(8,x)] = [(5,0),(8,4)]` then `y` is equal to
(A) `1`
(B) `3`
(C) `2`
(D) `-1`

If [(2x+y,0),(5,x)] = [(5,0),(5,3)] then y is equal to (a) 1 (b) 3 (c) 2 (d) -1

If |(x , 1),(1,x)| = |(2 , 0),(8,4)| then value of x is: (a) pm 3 (b) pm2 (c) pm4 (d) 0

If [[1,2],[3,1]][[x],[y]] = [[5],[5]] , then value of x+y is (A) 4 (B) 2 (C) 0 (D) 3

If [[1,2],[3,1]][[x],[y]] = [[5],[5]] , then value of x+y is (A) 4 (B) 2 (C) 0 (D) 3

If (1+x^2)(dy)/(dx)=x(1-y),y(0)=4/3, then the value of y(8)+8/9 is

If 8f(x)+6f((1)/(x))=x+5 and y=x^(2)(f(x), then (dy)/(dx) at x=-1 is equal to 0( b) (1)/(14)(c)-(1)/(4)(d) None of these

Given ABCD is a parallelogram wilth vertices as A(1,2),B(3,4) and C(2,3) . Then the equation of line AD is (A) x+y+1=0 (B) x-y+1=0 (C) -x+y+1=0 (D) x+y-1=0

If x-2y+2z=0, then x^(3)-8y^(3)+8z^(3) is equal to

If the area of the region bounded by y=sinax, y=0, x=pi/a and x=pi/(3a) is 4, then the positive value of a is (A) 1/2 (B) 2 (C) 5/8 (D) none of these

An ellipse with foci (-1,1) and (1,1) passes through (0,0) then its equation is (A) x^(2)+2y^(2)-8y=0" " (B) x^(2)+2y^(2)+4y=0 (C) x^(2)+2y^(2)+8y=0" " (D) x^(2)+2y^(2)-4y=0